The Tester Approves thread (see first post)

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bashthebox in reply to @Smallfurry

Praxis Works. I've had it for... hang on... *checks Strava... 9,876.3km, and nary a creak. Bearings still good too. Hmm, might double check those before the Alps appear though.

AFAIK, there's fuck all difference in stiffness between 30 and 24mm axles, especially when you're up at Ultegra/DA level. Though I'm sure Mr Tester is the better person to ask.

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Howard in reply to @bashthebox

AFAIK, there's fuck all difference in stiffness between 30 and 24mm axles

Stiffness isn't the point. You can make a 15mm axle stiffer than a 24mm DA axle if you make it out of enough material :)

The goal is good enough stiffness at minimum weight, and having 30mm to play with and only needing to fill a 68mm shell, Cannondale could make their axles out of hollow aluminum rather than steel, reducing the system weight but keeping the stiffness where it needs to be.

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gbj_tester in reply to @Howard

You can make a 15mm axle stiffer than a 24mm DA axle if you make it out of enough material :)

Pretty sure you can't, solid 15mm rod is exceeded by a 24mm OD tube at quite a small wall thickness.

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