Axels...

ej2320

This may seem stupid but what's the difference between QR and 15mm front axel

My front is a 15mm QR..

cooldad

Front QR is 9mm, so 6mm.

ej2320

Oh ok, so QR refers to the size rather than the system

I have 15mm QR so I wasn't sure

Thanks

anj132

As CD said, QR is 9mm. I guess your 15mm has some sort of qr skewer, sun tour have something called qloc I think. Not sure on rs & Fox etc, it's usually a bolt through.

There is an old thread about the difference in stiffness and taper steerer etc that's probably worth a gander

ej2320

Thanks, I have RS and they call it Maxle

I understand my confusion now, It's a QR skewer which I have just realised is not a quick release but can just be undone without tools

I understand the stiffness benefits and tapered and headsets and stanchions but just got confused over the sizes and terms in axles..

I assume this also applies to the rear..

Kowalski675

ej2320 wrote:

Thanks, I have RS and they call it Maxle

I understand my confusion now, It's a QR skewer which I have just realised is not a quick release but can just be undone without tools

Aye, it's ironic that a 9mm "quick release" skewer takes longer to use than the 15mm Maxle. I have the 15mm Maxle on my new bike and it's a great bit of design - v clever.

jairaj

ej2320 wrote:

what's the difference between QR and 15mm front axel

QR = Quick Release. It uses a 9mm axle which slots into the drop outs. It also has a skewer that goes through the middle of the axle and clamps everything together.

15mm as the name suggests is 15mm axle. But each manufacturer has there own way on how the axle is actually secured to the fork or frame. eg the Rock Shox system uses a 15mm axle that threads into the fork drop out and a cam system similar to the QR skewer keeps it tight and stops it unscrewing. Each manufacture also calls it a different name eg QR15, Maxle etc ... So you might not be able use a Rock Shox Maxle in a Fox fork, while they both are 15mm axle the threads might be different and fixing mechanism on the maxle won't engauge correctly with the dropouts on the fox fork.

ej2320

jairaj wrote:

ej2320 wrote:

what's the difference between QR and 15mm front axel

QR = Quick Release. It uses a 9mm axle which slots into the drop outs. It also has a skewer that goes through the middle of the axle and clamps everything together.

15mm as the name suggests is 15mm axle. But each manufacturer has there own way on how the axle is actually secured to the fork or frame. eg the Rock Shox system uses a 15mm axle that threads into the fork drop out and a cam system similar to the QR skewer keeps it tight and stops it unscrewing. Each manufacture also calls it a different name eg QR15, Maxle etc ... So you might not be able use a Rock Shox Maxle in a Fox fork, while they both are 15mm axle the threads might be different and fixing mechanism on the maxle won't engauge correctly with the dropouts on the fox fork.

great explanation, thanks!

I understand the rear as well now!

The Rookie

And it's axle......or do you have a maxel?