Originally Posted by
Discusman
Why 15mm axle and 20mm axle are more popular?
Are they better than 9mm axle in terms of stability and stiffness?
Do I need to replace the whole wheel set to use a 15mm or 20mm axle fork (switch from 9mm)?
Would it be a good idea if a bike has 15mm axle front and 9mm axle in the back?
Thanks
Because they just are. Like dinosaurs and muscle cars, they just are timelessly cool.
Yes, no, maybe. Depends on what you have for your hubs at the moment.
No issue running QR rear/thru-axle front. If you've got the scratch and are doing a new fork, pick up a thru-axle model, and a front wheel to match.
They bare a huge increase in stiffness - 15mm only so-so, but a full 20mm axle feels worlds better than a QR fork.
I have three bikes with 10x135mm bolted rears, and one 12x135mm thru-axle rear. All four run 20mm axle forks. I'd not go back to QR on anything other than a road bike or my townie.