Front boost hub
 

[Closed] Front boost hub

Posts: 826
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Looking to change my Bos Deville for a new fork.
As they all seem to be Boost i checked my front wheel for available axle caps to convert.

But, when I measure through the axle between the bits that stick out it measures 110mm.

Cant be possible that Ive had the wrong hub/axle/ fork combo can it?

I had the bike in the shop as the wheel looked buckled slightly but was told it must be the tyreAs the wheel was fine🤔

Or have I measured the wrong part?


 
Posted : 18/07/2021 9:32 pm
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You need to measure the gap between the inside of the fork legs, or alternatively the hub width ?


 
Posted : 18/07/2021 9:37 pm
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What’s the axle diameter, 20 or 15mm?


 
Posted : 18/07/2021 9:58 pm
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Its a 20mm axle, gap on forks looks like 110 and the other front wheel I had on another bike with the forks is 110 also.


 
Posted : 18/07/2021 10:11 pm
Posts: 20947
 

Ok, that’s not boost, confusingly.

15x100 = Non boost
Older 20x110 = Non boost
15x110 = Boost
Newer 20x110 boost = Boost, different to the old one on account of rotor spacing.

If adapters are available depends on your hub.


 
Posted : 18/07/2021 10:19 pm
Posts: 826
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Factor Components 127 hub and a Hope Pro 4 are hubs I have. Cant see any marking on the hope to say what it is tbough.


 
Posted : 18/07/2021 10:41 pm
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If the pro 4 is the front then you can convert that from 20mm non boost to 15mm boost. Hope make a kit. The wheel will need redishing.


 
Posted : 19/07/2021 8:56 am
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The Hope kit will also fit Pro2 Evo hubs
Not sure about Pro2 pre Evo but suspect it will.


 
Posted : 19/07/2021 9:11 am
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The pre Evo pro 2 front is the same (other than switch to stainless bearings) as the Evo version so kit will also fit that.


 
Posted : 19/07/2021 9:45 am
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Thanks all.

Can you still use Flickr to post pics on here?

nixie
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If the pro 4 is the front then you can convert that from 20mm non boost to 15mm boost. Hope make a kit. The wheel will need redishing.

I will look into this, I think I binned the hope front wheel when I couldn't get the tubeless to stay up. Although still confused on the 110mm on 100mm forks


 
Posted : 19/07/2021 11:39 am
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Although still confused on the 110mm on 100mm forks

Your old fork will have been a 110 spacing if it was a 20mm axle.
This however is different to 110 Boost spacing despite them both measuring 110mm.
The disc rotor location is different in 110x20 and 110 Boost.


 
Posted : 19/07/2021 12:28 pm