Thru axle length

Run BMC · 2020-04-04T19:58:45+01:00

So, having determined the size and thread pitch of the thru axles I need, I'm struggling to find one which is the correct length. The front (measured from the base of the bolt to the end of the threads) needs to be 117mm and the rear 160mm. Having looked around, the Brand X range seem to come closest to what I need, but the lengths available are just a tad too long (theirs being 125mm and 166mm). My question is does it need to be exact length or can spacers be purchased to put behind the bolt?

This topic has 4 replies, 3 voices, and was last updated 6 years, 2 months ago by Run BMC.

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April 4, 2020 at 7:58 pm #30601

Run BMC

So, having determined the size and thread pitch of the thru axles I need, I’m struggling to find one which is the correct length. The front (measured from the base of the bolt to the end of the threads) needs to be 117mm and the rear 160mm. Having looked around, the Brand X range seem to come closest to what I need, but the lengths available are just a tad too long (theirs being 125mm and 166mm). My question is does it need to be exact length or can spacers be purchased to put behind the bolt?
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April 5, 2020 at 10:04 am #957357
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Run BMC

hawkinspeter wrote:
Isn’t the length printed on the thru-axle? I’ve got Shimano ones and they have the length written on them.

Sadly not no. But I’m confident my measurements are correct – just need to find one that matches! I’ve since emailed Giant direct to see if they sell spares, though I guess they’ll be more expensive.

April 5, 2020 at 9:47 am #957355
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hawkinspeter

Isn’t the length printed on

Isn’t the length printed on the thru-axle? I’ve got Shimano ones and they have the length written on them.

April 5, 2020 at 8:46 am #957353
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Run BMC

Drinfinity wrote:
Don’t use spacers, the right axle is out there. What is the make/ model of your bike?

117 mm front sounds like a Canyon size.

There is a configuration tool for just about every bike here.

https://robertaxleproject.com/axle-finder-2/

It’s for a Giant Propel Advanced 1 (2019)

April 5, 2020 at 8:07 am #957351
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Drinfinity

Don’t use spacers, the right

Don’t use spacers, the right axle is out there. What is the make/ model of your bike?

117 mm front sounds like a Canyon size.

There is a configuration tool for just about every bike here.

https://robertaxleproject.com/axle-finder-2/
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