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Verdict: 
Nice lightweight seatpost that's easy enough to use, but expensive for what it is
Weight: 
167g

The Deda Superleggero RS seatpost is very light, good looking and pretty easy to use. It's an expensive way of shaving some weight from your bike, though, if saving weight is your main concern.

  • Pros: Light, good looking
  • Cons: Expensive, wheel adjustment difficult on some saddles and prone to sticking

Made from undirectional carbon fibre, the Superleggero has a 12mm setback and it's available in 350mm and 400mm lengths and 27.2mm and 31.6mm diameters; that'll cover most road bikes. The clamp is described as a single bolt by Deda but really it's two: one at the front to set the saddle angle and one at the back to tighten everything up. Once you have your saddle angle set, you can remove the saddle using just the one bolt, although it's still easier if you undo both. The Superleggero is compatible with Di2 batteries using Deda's adaptor.

> Find your nearest dealer here

I removed the standard seatpost from my mid-range Merida Scultura and replaced it with this one. The outgoing same-length (350mm) seatpost weighed 257g and the Superleggero is 167g, so that's a not-insignificant saving of 90g. That equates to a hairsine ratio (see here) of just over 0.5: half a gram saved for every pound spent. As you can see from the chart on this page, there are more cost-effective ways of saving the weight, not least buying a cheaper-but-still-lightweight seatpost. It's quite an expensive way of shaving the grams, really.

deda_superleggero_rs_seatpost_-_detail_3.jpg

Obviously, fitting a posh new seatpost is not just about saving weight. You want it to be effective too, and the Superleggero is fairly easy to get on with. The double bolt clamp makes adjusting the seat angle a precise operation, rather than loosening everything off and adjusting and tightening again. The rear bolt is right under the saddle; if you have a split saddle you'll be able to adjust it using a 5mm hex key, but if you don't you'll need to use the knurled wheel which is a bit of a fiddle. I've generally found that wheels like the one used here can gum up after wet or dirty rides, but unless you're altering your saddle angle a lot, or switching saddles, it's mostly a case of remembering to strip, clean and grease the mechanism from time to time.

deda_superleggero_rs_seatpost_-_detail.jpg

Deda doesn't make any specific claims for how much more compliant the Superleggero is than its competitors. It's a light post, and there's a bit of lateral give in it, especially as I tend to run plenty of seatpost. My Merida isn't an uncomfortable bike, and it's running 28mm tyres, so it was hard to discern any direct benefit from the swap; it's a marginal improvement at best.

deda_superleggero_rs_seatpost_-_detail_2.jpg

Lastly, you want your posh seatpost to look cool. There's no point paying £185 for a seatpost if it doesn't look cool, right? No worries on that front: the Superleggero is a very good-looking seatpost, with a nice organic shape and graphics that are bold without being too intrusive. Certainly it's a much nicer looking 'post than the workaday one it replaced.

deda_superleggero_rs_seatpost_2.jpg

Overall, the Deda is a decent post, but it doesn't really do anything to make it stand out and the £185 asking price feels a bit steep compared to other options like the Reilly carbon seatpost we tested eariler in the year: that's even lighter, and half the price.

> How to trim bike weight on the cheap

If you're looking for a bling Italian seatpost to adorn your bling Italian Sunday-best bike, though, it might fit the bill.

Verdict

Nice lightweight seatpost that's easy enough to use, but expensive for what it is

If you're thinking of buying this product using a cashback deal why not use the road.cc Top Cashback page and get some top cashback while helping to support your favourite independent cycling website

road.cc test report

Make and model: Deda Superleggero RS Seatpost

Size tested: 27.2mm diam, 350mm length

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

Deda says, "New 176 grams ultralight seatpost designed and developed without compromises in terms of reliability and strength. The 1-bolt clamp system allows an easy and fast assembly. A fine adjustment of the saddle inclination is possible through the adjusting screw on the seatpost head."

[note: our 27.2mm diameter 350mm long post weighed in at 167g]

Tell us some more about the technical aspects of the product?

Deda lists:

Material: UD full carbon construction

Length: 350 mm; 400 mm (black only)

Diameter: Ø 27,2 and 31,6 mm

Setback: 12 mm

Weight: 176 g (Ø 31,6 mm)

Finish: polish on black (POB); black

Compatible with Deda adapter for DI2 internal battery

Rate the product for quality of construction:
 
9/10
Rate the product for performance:
 
8/10
Rate the product for durability:
 
7/10
Rate the product for weight (if applicable)
 
9/10
Rate the product for comfort (if applicable)
 
7/10
Rate the product for value:
 
5/10

Tell us how the product performed overall when used for its designed purpose

It held the saddle away from the frame just dandy.

Tell us what you particularly liked about the product

Light, good looking.

Tell us what you particularly disliked about the product

Expensive, wheel adjustment difficult on some saddles and prone to sticking.

How does the price compare to that of similar products in the market, including ones recently tested on road.cc?

You can pay more, but equally carbon seatposts of a similar weight are available for a lot less.

Did you enjoy using the product? Inasmuch as you enjoy using a seatpost, yes.

Would you consider buying the product? Probably not.

Would you recommend the product to a friend? Probably not.

Use this box to explain your overall score

Performance is good, value not so much. Of the options out there it wouldn't be top of my list.

Overall rating: 6/10

About the tester

Age: 45  Height: 189cm  Weight: 92kg

I usually ride: whatever I'm testing...  My best bike is: Kinesis Tripster ATR, Merida Scultura

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

I regularly do the following types of riding: road racing, time trialling, cyclo-cross, commuting, touring, club rides, sportives, general fitness riding, fixed/singlespeed, mountain biking, Mountain Bike Bog Snorkelling, track

Dave is a founding father of road.cc and responsible for kicking the server when it breaks. In a previous life he was a graphic designer but he's also a three-time Mountain Bike Bog Snorkelling world champion, and remains unbeaten through the bog. Dave rides all sorts of bikes but tends to prefer metal ones. He's getting old is why.

7 comments

Avatar
Chris Hayes [409 posts] 7 months ago
1 like

Bit of a seatpost theme this week.  Must be a slow cycling week.  I don't know of any seatpost that does anything to make it stand out - apart from connect the seat to the frame. I have 2 Thomson seatposts - for aesthetic purposes - and a carbon Colnago one: I cannot tell the difference - infact the biggest difference in ride seems to come from swapping wheels between bikes.  

Avatar
ktache [1289 posts] 7 months ago
2 likes

Seeing that we do appear to be having a seatpost themed week, then I must tell you all about the Ebay special I have just fitted to my getting to work bike, an early to mid 90s, NOS, ZOOM Lightweight, 29.4mm, slight layback, Steel seatpost.  It is a thing of beauty.

Avatar
BehindTheBikesheds [2953 posts] 7 months ago
2 likes
ktache wrote:

Seeing that we do appear to be having a seatpost themed week, then I must tell you all about the Ebay special I have just fitted to my getting to work bike, an early to mid 90s, NOS, ZOOM Lightweight, 29.4mm, slight layback, Steel seatpost.  It is a thing of beauty.

Seatposts and stems ... sighheart, I bought a NOS Dura Ace 7400 about 12 years ago, had a brass shim included so you could fit it to 27.2 frames, went on my 50s Carlton as I'd specc'd it with DA 8speed incl the STIs (because I could) and managed to bag a NOS 7400 stem too, I bloody loved the elegence of it and not too fussy with its smooth lines. 

Having just seen some stems from Llewellyn Custom bikes I'm hankering for a new retro project

Avatar
Jack Osbourne snr [772 posts] 7 months ago
1 like

Absolutely spot on review!

I bought one of these to replace a rather incongruous looking silver Thomson post on my Record equipped Ti bike. 

It looks great, it's easy enough to set up (with a cutout saddle), it doesn't amplify road buzz and it's a perfectly acceptable weight... Not that that's going to make (at 90kg) the slightest difference to me!

I bought it for looks and it helps a 10 year old bike finally look like a carefully put together machine rather than a collection of parts!

At just over 100 quid (including BC discount) its by far the most expensive seatpost I've ever bought, but I've just about come to terms with that.

Avatar
ktache [1289 posts] 7 months ago
0 likes

BTBS that Llewellyn stem is incredible.  Thank you.

A bit of  a shame that he only makes them to compliment a new custom frame.

Avatar
dave atkinson [6487 posts] 7 months ago
6 likes

Chris Hayes wrote:

Bit of a seatpost theme this week.  Must be a slow cycling week.  

It's steerer cap week next week, hope you enjoy that as much

Avatar
John Stevenson [418 posts] 7 months ago
3 likes

dave atkinson wrote:

Chris Hayes wrote:

Bit of a seatpost theme this week.  Must be a slow cycling week.  

It's steerer cap week next week, hope you enjoy that as much

I can't wait to put together the buyer's guide for those!