Bike Forums - View Single Post - SS to fixed on roadbike question.

11-23-12 | 08:34 PM

#27

rex615

canis lupus familiaris

Joined: Dec 2011

Posts: 2,254

Likes: 1

From: North Carolina

Bikes: En plus one

Quote:

Originally Posted by Spoonrobot

It's not that they're unsuitable, it's just that the axles tend to get less reliable the larger the spacing is for a freewheel'd bike.

http://pardo.net/bike/pic/fail-025/000.html

Thanks for the link, interesting historical detail.

So if i understood correctly, it is the amount of "overhang" that makes the design inherently weaker when using 6 speed clusters (at 126mm spacing).

So by re-spacing the the hub towards the center of the axle, you decrease the amount of overhang on the gear cluster side. This brings that bearing closer to the frame and should actually reduce the propensity to break the axle.

In other words, if you din't break axles on the bike in the stock configuration (ie with the six speed gear cluster) you would be less likely to do so by converting it to a single speed if you re-spaced the hub.

Is this correct?

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