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Make wonky stems a thing of the past with the Spurtreu laser alignment tool

You know how it is, you’re squinting through one half closed eye trying to line up the stem with your front wheel, but as soon as you get out on the bike you can’t help notice that it’s a hair's width out, and if you're anything like me you’ll have to stop immediately to straighten it.

So here’s a product that I’m amazed nobody has thought of before, the Tune Spurtrue, possibly the most elegantly over-engineered tool for the simplest task. It uses a laser to align the stem precisely with the front wheel, while the device itself sits on top of the stem and handlebars. Pretty neat, huh?

The Spurtrue is CNC-machined from aluminium with shaped recesses to sit over both the stem and handlebar, though it’s not clear what sort of compatibility it has with the plethora of stems and handlebars on the market. A laser pointer is mounted at the front and operated by a small button. Press it and a beam fires down, simply line it up with the centre of the tyre and you’re good to go.

Products bearing the Tune label usually command a high price but at £65 it isn’t wildly excessive. Okay it’s not something you’re going to use everyday, but for a professional team mechanic or a website with a high turnover of test bikes, it could be prove to be indispensable. We've just been on the phone to Tune UK distributor Poshbikes and they tell us they've had 100s of inquiries already about the Spurtrue., so it seems to have hit a nerve.

It will be available from next month, and you can place your orders now at www.poshbikes.com, 01622 762055 and info [at] poshbikes.com

David has worked on the road.cc tech team since July 2012. Previously he was editor of Bikemagic.com and before that staff writer at RCUK. He's a seasoned cyclist of all disciplines, from road to mountain biking, touring to cyclo-cross, he only wishes he had time to ride them all. He's mildly competitive, though he'll never admit it, and is a frequent road racer but is too lazy to do really well. He currently resides in the Cotswolds.

36 comments

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SteveAustin [34 posts] 2 years ago
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Nice idea. Think i'll go make myself one right now  4

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dodgy [201 posts] 2 years ago
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ffs

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RichK [34 posts] 2 years ago
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 41 a piece of string is cheaper and just as accurate

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cat1commuter [1421 posts] 2 years ago
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The obsession I have with getting my stem straight is perfectly summed up by this post by fatcyclist.

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laterrehaute [25 posts] 2 years ago
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And one for the saddle as well please!

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jmaccelari [243 posts] 2 years ago
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For £65, I'd rather go out and buy a piece of string!

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surly_by_name [390 posts] 2 years ago
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You all know it actually doesn't matter if its 100% straight, right? Your front wheel doesn't track straight because of your stem or else you couldn't ride no handed. Your front wheel is self centering at (pretty low speeds). So while having your stem a long way off centre is going to make holding your bars/cornering a challenge, having it a bit off centre isn't a big issue. Try putting your stem off centre by a small (but obvious to the naked eye) distance and go for a ride trying to avoid looking at your stem too closely. Once you get used to (minor) difference in reach you won't notice the difference.

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bikebot [2010 posts] 2 years ago
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The perfect gift, for anyone who both cycles and has OCD.

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madonepro [36 posts] 2 years ago
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it's simpler to take the front wheel out, turn the bike upside down and rest the fork dropouts and the lever hoods on the ground, and then loosen briefly the stem, and tighten up, reverse above, and voila.

Of course your levers have to be level!

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Cyclosis [73 posts] 2 years ago
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madonepro wrote:

it's simpler to take the front wheel out, turn the bike upside down and rest the fork dropouts and the lever hoods on the ground, and then loosen briefly the stem, and tighten up, reverse above, and voila.

Of course your levers have to be level!

I fail to see how that's simpler. Cheaper, yes, but not simpler nor quicker.

Surely someone could make a cheaper version than £65 though. It needn't be machined out of aluminium.

Jim

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leqin [174 posts] 2 years ago
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And the Campagnolo version will be nitride coated with a individual calibration certificate and a choice of either a red, blue, or green lazer and will only cost as much as your whole bike... or you could just use a piece of string... a Campagnolo piece of string mind.

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dave atkinson [6251 posts] 2 years ago
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y'all had better make sure i'm not the only one in the office when this shows up, road.cc. "what laser stem thing?"  3//encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcR25kQ6Z31haqPYYREE1KnSa2L0ni8gfezLI5rZpNsJGyuAm8lrUWvk8QMD)

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IanW1968 [276 posts] 2 years ago
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Brilliant idea, only the price is wrong.

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chrismday [49 posts] 2 years ago
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Sorry if I'm being a bit thick, but how do you use a bit of string?

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rjw [52 posts] 2 years ago
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Fortunately for my wallet, you can't actually order one online yet  1

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workhard [397 posts] 2 years ago
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wouldn't an steel rod in a hole be a lot cheaper than a laser?

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workhard [397 posts] 2 years ago
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madonepro wrote:

it's simpler to take the front wheel out, turn the bike upside down and rest the fork dropouts and the lever hoods on the ground, and then loosen briefly the stem, and tighten up, reverse above, and voila.

Of course your levers have to be level!

But you won't care because your hoods and shifters will be all scuffed.

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workhard [397 posts] 2 years ago
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laterrehaute wrote:

And one for the saddle as well please!

Which way does sir dress?

My saddle is slightly off centre for a reason.....  3

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I love my bike [157 posts] 2 years ago
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Alternatively, put your handlebar bag on to be happily oblivious and not be tempted to spend £65 on something that won't save a millisecond or a milligram(me)!

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therevokid [953 posts] 2 years ago
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wonder if I could use the laser from my Barret .....  19

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joemmo [1164 posts] 2 years ago
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yes but what if my tyre isn't on straight, or my wheel isn't dished or my forks are misaligned or my stem isn't circular or the bars are bent or my eyeballs are assymetrical or the refractive index of the air in my garage doesn't meet UCI standards or local temporal / gravitational anomalies deflect the laser ever so slightly or OMG THE HORROR! how will I ever sleep again?

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don simon [787 posts] 2 years ago
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madonepro wrote:

it's simpler to take the front wheel out, turn the bike upside down and rest the fork dropouts and the lever hoods on the ground, and then loosen briefly the stem, and tighten up, reverse above, and voila.

Of course your levers have to be level!

Fear not, I'm in the process of designing a gadget that will satisfy your need.

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matthewn5 [809 posts] 2 years ago
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Sight on each side of the stem to a spoke nipple, using the top of the wheel as a guide. Works for me, and I am fussy about handlebar alignment.

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Rupert [189 posts] 2 years ago
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OMG I love this !
I need one for my saddle as well and for the winter is there one that can make sure my mudguards are straight  4

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flobble [104 posts] 2 years ago
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drmatthewhardy wrote:

Sight on each side of the stem to a spoke nipple, using the top of the wheel as a guide. Works for me, and I am fussy about handlebar alignment.

Yes, yes, yes! Never thought of that. Very simple, just as fast as lasers, and free.

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Peowpeowpeowlasers [398 posts] 2 years ago
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We wouldn't need gadgets and curious methods if manufacturers would just build their components with keyways and simple alignment marks. Seriously, how many pence would be added to the cost of a fork steerer by a simple white line up its back, and a handlebar stem with a matching mark?

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Captain Beaky [31 posts] 2 years ago
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Cyclosis wrote:

Surely someone could make a cheaper version than £65 though. It needn't be machined out of aluminium.

Jim

Get that 3D printer warmed up...  1

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leqin [174 posts] 2 years ago
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chrismday wrote:

Sorry if I'm being a bit thick, but how do you use a bit of string?

My grandad showed me this - you need a piece of string long enough to reach just above your tyre from the front of your stem and a small threaded nut, which you thread the string through and then tie a knot to hold the nut in place. Now use a bit of duct tape to fix the string temporarily in place off the front of your stem and with the nut floating just above your front tyre you use it to guide you whether or not your stem and front tyre are in alignment- so it works just like a builders plumb bob and requires no battery's and cannot be used to frustrate the cat and you could use other things that approximate the string and nut and duct tape to achieve the same result and just put it in your toolbox for the next time you need it... £65 saved for some tool you really do need.

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BigDummy [314 posts] 2 years ago
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Quote:

use a bit of duct tape to fix the string temporarily in place off the front of your stem

Making sure the string is duct-taped right in the middle of the stem using our patented laser.

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jason.timothy.jones [294 posts] 2 years ago
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The only place a friggen Lazer is of any use is on a sharks head

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