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Orro Venturi STC SRAM Force eTap 2021



Stunning looks, performance and ride quality in a very competitively priced bike
Aerodynamics that work on the road
Precision handling
Great balance of comfort and stiffness
SRAM Force eTap gives a large spread of usable ratios
Press-fit BB won't be to everyone’s taste
7,980g Recommends

This product has been selected to feature in recommends. That means it's not just scored well, but we think it stands out as special. Go to recommends

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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The 2021 Orro Venturi STC SRAM Force eTap Tailor Made takes all of the excellent qualities and attributes of the previous model but now comes with smoother lines thanks to fully integrated brake hoses and some bling-looking cockpit components to really make it stand out from the crowd. SRAM's excellent eTap groupset makes a welcome appearance too.

Orro could easily have rested on its laurels after designing one of the best aero all-rounders I've ever ridden, the 2020 Venturi Ultegra Di2 Wind 400, but it didn't.

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The new fully integrated cable and hose routing not only gives marginal aero gains but also improves aesthetics, bringing refinement to the front end, and the SRAM eTap build gives you the ideal gear ratios whether you are hammering it hard on a flat road or taking to the hills for the day.

Before I get into all of that, though, let's have a look at what Orro hasn't changed: the ride…

The ride

For such a stiff frameset the Venturi offers impressive levels of comfort. You still know you are aboard a taut, high-performance machine, but there is no harshness or irritating vibration even with the tyres pumped up hard.

2021 Orro Venturi STC SRAM Force eTap - riding 2.jpg

A lot of that is achieved by the use of spread tow carbon fibre (I'll touch on that in the section below about the frame and fork), but also in the way the carbon is laid up. Orro designs its own frames and doesn't use open moulds so the company has complete control over the finished product.

The smoothness of the ride means that even on long rides I didn't feel any fatigue at the usual points like wrists or lower back, which allowed me to push on at a quick pace for longer.

2021 Orro Venturi STC SRAM Force eTap - riding 4.jpg

As I said in my previous Venturi review, its geometry and handling isn't as aggressive as a full-on race bike – it feels more like a very fast endurance machine with a racy edge. The stiffness from the oversize tubing and wide BB86 bottom bracket means that should you want to sprint or hit a climb hard, you won't be disappointed once you get out of the saddle.

I gave this bike everything I could in terms of power efforts out on the road and there isn't a whiff of flex anywhere.

The tube profiles and seatpost do bring an aero advantage, especially when paired with the 40mm-deep carbon rims. This top-level model also gets the BlkTec Carbon Aero stem and handlebar, which give that clean front end.

2021 Orro Venturi STC SRAM Force eTap - riding 5.jpg

All this adds up to a bike that cuts through the air, especially when the speed gets up above 20mph, the point where aerodynamics really become noticeable in the real world. This thing absolutely motors on the flat, especially when you hunker down into the drops.

If you like your downhills then you'll love the Venturi. It feels totally planted thanks to the riding position the geometry allows, and the steering is quick without sneaking over the border into Twitchyville.

I'm a confident descender and really like to push a bike as fast as possible, especially on technical hills. Obviously, this doesn't always go to plan, but the Orro gives you plenty of feedback to let you know what the tyres are up to.

A few times I went into a bend a little hot, shall we say, but the Venturi is easy to bring back onto line whether through the steering or the application of the disc brakes. It's forgiving without damping down the fun levels.

Frame and fork

As I mentioned, the frame is manufactured using spread tow carbon which means that the carbon fibre is arranged in flat, wide tapes; think of it as ribbons that are woven together.

2021 Orro Venturi STC SRAM Force eTap.jpg

Producer Sigmatex explains the benefits: 'Spread tow fabrics are very thin, are ultra-lightweight, have near zero crimp and fewer interlacing points. As well as being aesthetically pleasing, this technology has improved mechanical performance at a reduced thickness and cost when compared to standard 2D fabrics using 1K fibres. It is said to reduce weight and increase stiffness.'

The big change with this new frame, though, is the cable/hose/wire integration. Gone are all of the entry ports located on the down tube as they just aren't needed anymore. All you'll find is an exit point for the rear brake hose plus the front and rear mechs, although the latter two aren't used here as eTap is a completely wireless system.

2021 Orro Venturi STC SRAM Force eTap - head tube.jpg

Here, the brake hoses run from the shifters through the handlebar and directly into the stem, from where they are fed down into the head tube, guided by the headset spacers.

The spacers come in two halves, so should you want to remove some to trim the steerer tube you won't need to re-cable or re-hose.

2021 Orro Venturi STC SRAM Force eTap - stem 2.jpg

The fork has also been tweaked as it no longer needs the entry point at the top of the leg, the hose again running completely internally until it exits just above the calliper. It's a very clean looking frameset.

2021 Orro Venturi STC SRAM Force eTap - fork.jpg

When it comes to its design, the Venturi very much focuses on the aerodynamic side of things, as you can see by the deep section tubing.

2021 Orro Venturi STC SRAM Force eTap - down tube shape.jpg

First of all, it's developed around a 28mm tyre, highlighting the trend for ever wider rubber on race bikes, so while clearances are generous, the shape of the frame follows the contours of the wheel/tyre size closely when you look from the side.

2021 Orro Venturi STC SRAM Force eTap - seat stays 2.jpg

The seat tube arcs around the rear tyre, for instance, while the angular down tube hugs the front wheel.

2021 Orro Venturi STC SRAM Force eTap - tyre and frame clearance.jpg

At the front the head tube, down tube and top tube basically mould into one, which gives some big cross-sectional areas for stiffness. The fork is also integrated into the down tube for a smooth transition.

2021 Orro Venturi STC SRAM Force eTap - front.jpg

Not everyone is a fan of press-fit bottom brackets because of early issues with very loose tolerances which resulted in creaking and poor bearing life, especially when ridden in the wet. I've said this many times over the last year, but I'm seeing fewer and fewer problems on the various bikes that I've been riding, especially those being ridden in the winter months.

2021 Orro Venturi STC SRAM Force eTap - bottom bracket.jpg

One benefit that you get from pressing the bearings into the frame rather than having them sit outboard is that the frame can be wider here, allowing for extra stiffness without affecting the Q-factor, the distance between the pedals. The extra width of the bottom bracket shell allows the tubes joining it to have a larger cross-sectional area too, increasing stiffness and resisting any flex from the pedalling forces.

2021 Orro Venturi STC SRAM Force eTap - riding 3.jpg

Overall, the whole frame is quite boxy and oversized, so it's impressive that Orro has been able to deliver so much comfort.

2021 Orro Venturi STC SRAM Force eTap - top tube.jpg

The Orro seatpost uses an internal wedge style system instead of the more common external seat clamp. The bolt is tucked away under the top tube and I'm pleased to say that it held the post securely throughout testing.

2021 Orro Venturi STC SRAM Force eTap - seat tube junction.jpg

Geometry-wise, it's certainly speed orientated but not quite as aggressive as you might think. This large size comes with a 558.2mm effective top tube and a 163.8mm head tube. The seat angle on this model is 73.5 degrees, while the head angle is slightly slacker than expected at 72.3 degrees. This gives a stack figure of 561mm and a reach of 392mm, the wheelbase is 999.5mm.

2021 Orro Venturi STC SRAM Force eTap - rear.jpg

Four sizes are available and two colour choices: gloss black with gold decals or this matt black version. I do like the look of the shiny one, but my son swayed me towards this one when he started calling it the Batman bike.


The Venturi range includes builds from Shimano, Campagnolo and SRAM so you get plenty of choice. What we have here is the SRAM Force eTap AXS model and it's a groupset I really love.

2021 Orro Venturi STC SRAM Force eTap - crank.jpg

First of all, once you get your muscle memory functioning it is such an easy setup to use. You have one button on each shifter, click the right shifter and it'll drop the chain down the cassette. Push the left one and it'll climb back up. Push both together and the front mech will move the chain to the other ring – proper simples!

2021 Orro Venturi STC SRAM Force eTap - bars and lever.jpg

The biggest draw for me though is the ratios. It's 12-speed at the rear with a 10-33t cassette, paired with a 48/35-tooth chainset.

2021 Orro Venturi STC SRAM Force eTap - drivetrain.jpg

With that 10t sprocket you still have a massive top gear for flying downhill (48x10 is roughly the same as 53x11) while the 33x35 smallest sprocket/ring combo gives you a low enough gear to get up the climbs.

2021 Orro Venturi STC SRAM Force eTap - cassette.jpg

Out on the road it just works really well, and to be honest on the majority of the rides the small front chainring didn't get a whole lot of use. The shifting is quick and crisp, the carbon cranks are super-stiff, ready for plenty of pedal mashing, and the whole setup runs very quietly. The Flattop chain continues the clean and smooth look, too.

2021 Orro Venturi STC SRAM Force eTap - front mech.jpg

It's also an easy groupset to set up thanks to SRAM's app, which allows you to set up how the shifters respond (it also shows you the battery life left on each component).

2021 Orro Venturi STC SRAM Force eTap - rear mech.jpg

SRAM's hydraulic braking system offers loads of power and plenty of modulation from the 160mm diameter front, 140mm rear rotor setup. When new they were quite noisy in the wet, but after a hundred miles or so they started to quieten down and the braking power increased.

2021 Orro Venturi STC SRAM Force eTap - fornt disc brake.jpg

Finishing kit

The top flight Venturi Tailor Made models come with the BlkTec stem and handlebar I mentioned earlier. It's a brand I first came aware of when I got to ride its C1 wheels back in 2014 – a full carbon wheelset that weighed an incredible 1,363g!

2021 Orro Venturi STC SRAM Force eTap - bars 1.jpg

The carbon Aero stem looks the business with its smooth shape and flush top cap. It's stiff too.

2021 Orro Venturi STC SRAM Force eTap - stem.jpg

The handlebar with the same name is stiffer than a lot of carbon bars I've used, but just like the frame, it doesn't feel harsh. The flat tops offer a comfortable hand position while being a little bit aero, and a nice touch is the full diameter centre section which allows you to fit a computer and lights, not something usually achievable on such designs.

2021 Orro Venturi STC SRAM Force eTap - bars 2.jpg

Saddle-wise, you're getting a Prologo Dimension, one of my favourites. It's a firm seat, but I like that, and it kind of suits the Venturi. There is enough give in the padding to take out the worst of the rough stuff, and its stiff nature gives you a good platform to push against when sprinting or climbing in the saddle.

2021 Orro Venturi STC SRAM Force eTap - saddle.jpg

Wheels and tyres

This Venturi comes with Fulcrum's Airbeat 400 Carbon 40mm wheels, original equipment models only available to bike manufacturers rather than the general public. They are very similar to Fulcrum's Wind 40 DB wheels in terms of hubs and rim depth but are a couple of millimetres wider to sit better with the 28mm tyres.

2021 Orro Venturi STC SRAM Force eTap - rim and tyre.jpg

They have a quoted weight of 1,640g so they aren't the lightest out there, but their 24-spoke build provides loads of stiffness, and durability looks to be good too.

The spec list might say Vredesteins, but our test bike came with Continental Grand Prix 5000 TL tubeless tyres fitted to the Fulcrums. These aren't cheap when it comes to replacing them, but boy are they grippy and they roll fast too. Even on cold, wet roads they inspire plenty of confidence when you're racing through roundabouts or taking corners at speed.

2021 Orro Venturi STC SRAM Force eTap - clearance.jpg

Puncture protection has proved good during a time when the hedgerows are being shorn, and thanks to the internal liner they don't need reinflating very often.


This Venturi model is priced at £4,599, which I see as a lot of bike for the money when you take into account the groupset, wheels and finishing kit. There's been no skimping on the frameset either.

Canyon has updated its Aeroad for 2021 and it certainly looks a smooth and fast machine thanks to the integration of the cable/hoses, as with the Orro. The CF SLX 8.0 Disc AXS model comes with a Force eTap groupset like the Venturi but costs £5,499, though you are getting a set of 62mm-deep DT Swiss ARC wheels which definitely aren't cheap. Taking that into account, the Venturi still looks competitive against a brand that is often touted as offering impressive value for money.

> Buyer’s Guide: 28 of the best and fastest 2021 aero road bikes

A couple of months back I reviewed the Wilier Cento10 SL, and it was a thing of beauty, not just in the way it looked, but also the way it rode. It's a similar kind of design to the Venturi, with a nod to some aero benefits, and while it's a race bike its comfort levels mean that it covers big miles, fast, just like the Orro. I tested the Ultegra Di2 model, which costs £5,290, but Wilier also offers a Force eTap AXS model for the same price, with similar finishing kit to the Venturi.


The 2021 Venturi has retained all of the spirit and fun of the previous model but brings with it more refinement and makes a stunning looking bike even more appealing. The BlkTec components finish things off nicely, and the SRAM eTap groupset really exploits the performance of the frame.


Stunning looks, performance and ride quality in a very competitively priced bike test report

Make and model: Orro Venturi STC SRAM Force eTap 2021

Size tested: L

About the bike

List the components used to build up the bike.

Orro lists:

Frame: ORRO Venturi STC

Seatpost: ORRO Carbon Aero

Fork: ORRO Venturi STC

Saddle: Prologo Dimension

Bottom Bracket: BB86

Stem: BlkTec Carbon Aero

Front Derailleur: Sram Force AXS Etap

Handlebar: BlkTec Carbon Aero

Cassette: Sram Force AXS 10-33

Shifters: Sram Force AXS Etap

Wheelset: Fulcrum Airbeat Carbon 40mm

Tyres: Vredestein Fortezza Tubeless

Rear Derailleur: Sram Force AXS Etap

Brake Calipers: Sram Force AXS

Chainset: Sram Force AXS 35/48

Tell us what the bike is for and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about the bike?

Orro says, "Our brand new Venturi STC is an evolution of our much loved speed machine. We knew nothing had to be revolutionised with this bike so we have kept the geometry and handling that makes the Venturi so easy to ride and updated the frame and cockpit to make it even better. We now have a fully integrated cockpit on every model for improved front-end aero performance and a clean look.

'The Venturi is an aerodynamically optimised frame that rewards you with brilliant speed. This is a bike that encourages you to ride fast but lets you cruise in comfort when you want to calm things down. The Prologo, BlkTec and Sram kit ensure every contact point is a joy to use throughout your ride."

The Venturi is a stunning bike to ride and the latest tweaks have improved the aesthetics, while the SRAM groupset creates a clean looking bike and one that is efficient.

Where does this model sit in the range? Tell us briefly about the cheaper options and the more expensive options

The Tailor Made line-up starts at £3,599.99 for Shimano Ultegra, with an Ultegra Di2 model at £4,399.99, and sitting above the Force eTap option is a Super Record build at £5,999.99.

Orro also offers a standard STC line-up with an FSA cockpit (everything is still integrated for a clean front end) and Fulcrum 400 DB wheels. That starts at £2,699.99 for an Ultegra model.

Frame and fork

Overall rating for frame and fork

Tell us about the build quality and finish of the frame and fork?

It's a high quality frameset and the matt colour does give it a stealth look.

Tell us about the materials used in the frame and fork?

Orro uses spread tow carbon from UK carbon composite specialist Sigmatex. 'Spread tow' means the carbon fibre is arranged in flat, wide tapes; think of it as ribbons that are woven together.

Tell us about the geometry of the frame and fork?

It is a race-orientated bike, but with a slightly slacker head tube angle than I would expect; it means the steering isn't at all twitchy but remains quick.

How was the bike in terms of height and reach? How did it compare to other bikes of the same stated size?

The stack and reach figures are exactly what I'd expect for a race style bike; the stack divided by the reach is 1.43 on this large model.

Riding the bike

Was the bike comfortable to ride? Tell us how you felt about the ride quality.

For such a firm frame it is impressively comfortable.

Did the bike feel stiff in the right places? Did any part of the bike feel too stiff or too flexible?

Stiffness throughout the frame and fork is very impressive.

How did the bike transfer power? Did it feel efficient?

The Venturi transfers power well thanks to the oversize bottom bracket area, and the sub-8kg weight means that it feels responsive.

Was there any toe-clip overlap with the front wheel? If so was it a problem?


How would you describe the steering? Was it lively neutral or unresponsive? Just the fun side of neutral.

Tell us some more about the handling. How did the bike feel overall? Did it do particular things well or badly?

The steering overall isn't quite as sharp as some race bikes I've ridden but it is very close, and it means the front end never feels twitchy. If you find yourself a bit out of your depth the calmness of the steering lets you get things back under control without faff.

Which components had the most effect (good or bad) on the bike's comfort? would you recommend any changes?

The flat tops of the BlkTec handlebar give a comfortable hand position on long rides, and I'm a fan of the Prologo saddle shape.

Which components had the most effect (good or bad) on the bike's stiffness? would you recommend any changes?

Both the stem and handlebar provide plenty of stiffness for out of the saddle efforts, as do the Fulcrum wheels.

Which components had the most effect (good or bad) on the bike's efficiency? would you recommend any changes?

I get on really well with the ratios of the SRAM groupset.

Rate the bike for efficiency of power transfer:
Rate the bike for acceleration:
Rate the bike for sprinting:
Rate the bike for high speed stability:
Rate the bike for cruising speed stability:
Rate the bike for low speed stability:
Rate the bike for flat cornering:
Rate the bike for cornering on descents:
Rate the bike for climbing:

The drivetrain

Rate the drivetrain for performance:
Rate the drivetrain for durability:
Rate the drivetrain for weight:
Rate the drivetrain for value:

Tell us some more about the drivetrain. Anything you particularly did or didn't like? Any components which didn't work well together?

The Force eTap groupset works brilliantly. The gear shifts are quick and snappy, the braking is powerful and precise.

Wheels and tyres

Rate the wheels for performance:
Rate the wheels for durability:
Rate the wheels for weight:
Rate the wheels for comfort:
Rate the wheels for value:

Tell us some more about the wheels.Did they work well in the conditions you encountered? Would you change the wheels? If so what for?

A quality set of wheels that deliver some aerodynamic benefit without being so deep that they become a handful on windy days.

Rate the tyres for performance:
Rate the tyres for durability:
Rate the tyres for weight:
Rate the tyres for comfort:
Rate the tyres for value:

Tell us some more about the tyres. Did they work well in the conditions you encountered? Would you change the tyres? If so what for?

The tyres on their own are pricey but the Venturi deserves their excellent grip levels and low rolling resistance.


Rate the controls for performance:
Rate the controls for durability:
Rate the controls for weight:
Rate the controls for comfort:
Rate the controls for value:

Tell us some more about the controls. Any particularly good or bad components? How would the controls work for larger or smaller riders?

The Venturi is very well specced and I see this as a bike that needs no upgrades anywhere. It's good to see quality components like the BlkTec stuff and the bar's shape offers plenty of hand positions.

Your summary

Did you enjoy riding the bike? Yes

Would you consider buying the bike? Yes

Would you recommend the bike to a friend? Yes

How does the price compare to that of similar bikes in the market, including ones recently tested on

Although the Canyon mentioned in the review costs a fair bit more, that's mostly down to the wheels; go like for like and the price would be about on par, which is impressive considering Orro is taking on the direct-to-consumer model that Canyon uses.

The Venturi comes in much cheaper than something like the Wilier Cento10 SL too.

Rate the bike overall for performance:
Rate the bike overall for value:

Use this box to explain your overall score

The Venturi still has one of the best carbon frames I have ever ridden and now it looks even better. The balance of performance and comfort is impressive and it really is a lot of bike for the money.

Overall rating: 9/10

About the tester

Age: 42  Height: 180cm  Weight: 76kg

I usually ride: This month's test bike  My best bike is: B'Twin Ultra CF draped in the latest bling test components

I've been riding for: Over 20 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: time trialling, commuting, club rides, sportives, fixed/singlespeed,

As part of the tech team here at F-At Digital, senior product reviewer Stu spends the majority of his time writing in-depth reviews for, and ebiketips using the knowledge gained from testing over 1,500 pieces of kit (plus 100's of bikes) since starting out as a freelancer back in 2009. After first throwing his leg over a race bike back in 2000, Stu's ridden more than 170,000 miles on road, time-trial, track, and gravel bikes, and while he's put his racing days behind him, he still likes to smash the pedals rather than take things easy. With a background in design and engineering, he has an obsession with how things are developed and manufactured, has a borderline fetish for handbuilt metal frames and finds a rim braked road bike very aesthetically pleasing!

Add new comment


fenix | 3 years ago

Any idea what the widest tyre you can fit on this frame ? As I'm getting older I find I prefer a fatter tyre for grip and comfort.

Does look like a nice package - quite similar to the Virus zx1 Evo etap.

jonhall91 | 3 years ago

Great write up! How tall are you/how did you find the sizing? I'm 185cm and I've got a large frame on order (with Ultegra build). Thanks!

EddyBerckx | 3 years ago


oceansoul | 3 years ago
1 like

pressfit is not the issue, the problem is the shitty bb86 that forces you to use 22mm cranksets or tiny bearings with 30mm crank. There are so many good 30mm cranksets out there there is no reason for manufacture to still use bb86

sparrowlegs | 3 years ago

Love the look of the Venturi. It looks fast just standing still.

Checking on the Orro website and they are doing a full Campag EPS option for £5,999. That's crazy cheap. I can't see where they've scrimped at all.

A set of Parcours Strade on the EPS version and I'd say that's pretty much a perfect spec. Should be a lot lighter in that guise too.

Definitely considering the Venturi when I finally go disc on the summer bike. 

Prosper0 | 3 years ago
1 like

This bike is teriffic value for money. In comparison I just bought the new Cannondale Supersix with similar spec (Force Etap disk etc) for £200 more but this is 300 grams lighter, has deeper carbon wheels, and top end tyres, for any stock bike to come with Continental GP5K TLs out the box is amazing, well done Orro. 

My only issue is what the aero savings are - a very important question on clearly an aero bike. Who designed it, has it been tested, who by? etc etc.

Lots of bikes these days are designed to 'look aero' but are no faster than an ordinary bike due to just 'copying the look' of scientifically designed bikes. This may fall into this category, no matter how good value it is.

Stu, I would love to dig into this stuff and ask the difficult questions, because we cant!

EddyBerckx | 3 years ago

When I first started looking at this new model back in August/September their website said they would be available for pre order to be dispatched 21st September...since then every day the date gets pushed back a day. Latest is 29th January for all models, so I assume it's the frame/fork that's been delayed?


Would be nice to know what's going on if anyone from Orro would like to reply as with the last review? 


Richthornton replied to EddyBerckx | 3 years ago
1 like

EddyBerckx, I ordered the non-taylor made, Di2 version in September. At the time it was advertised as available on 15 October. I received it on 13 November. Orro/i-ride never reached out to me about it, but whenever I got in touch to chase it up they were easy to get hold of but never really explained the delays other than frames being delayed arriving with them for building. Despite my frustration, wanting to get riding, I knew it was the right bike for me so was willing to stick it out, and I wasn't dissapointed once I finally got my hands on it.  The review above rings true (albeit a different build), it's so comfortable and an extremely enjoyable, fast ride. 

EddyBerckx replied to Richthornton | 3 years ago

Thanks for the reply, much appreciated!

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