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So... I'm thinking offsets here, I know a few brands are now sticking shorter offsets on some long 29er forks, and I wonder what sort of effect that has on actual feel. I feel a test coming on... but, I'm a purveyor of rockshox forks (see also, tight northerner) and wondered where rockshox set their offset from. From the looks of this picture on bikeradar, Fox fork offset is decided at the crown, but I'm wondering if rockshox offset is at the axle/dropouts instead. Anyone shed any light on this?
Read during the recent Enduro Mag test that shorter offset turns better and longer offset is better in a straight line but the difference isnt really measurable. Would be nice to test.
99% sure that RS also set offset at the crown.
“Read during the recent Enduro Mag test that shorter offset turns better and longer offset is better in a straight line but the difference isnt really measurable.”
I’d have thought it would be the opposite ?
Offset is the total differnce between the centre of the steerer and the centre of the axle. It can be created in the crown, at the dropout or by angle of the fork leg relative to the steerer
As far as I can tell from my own experimentation, the important part is to think you know what the offset is- I genuinely thought I could maybe feel a difference between my Fox G3s and my standard Pikes then it turned out they had the same offset, it's just that Fox shouted about it a lot.
Strikes me that it'd be nicer/better to do it with the fork lowers, since that way you could change offset with a single part. But I'm reasonably sure they do it at the crown.
I bought some coil Sektors on CRC a while back, stuck em on in place of my rogered Revs. They were nice and plush, but the front kept tucking under in tight, steep turns. Apparently this is a thing with long offset forks, and that's what it turned out I'd bought, without realising it.
My short offset Lyriks definitely have the shorter offset set at the crown, its quite visible
Have you got a pic of the crown please mate - would be good to see!
If only there was some kind of ...parts catalog... that listed the spare CSU-s for each offset (search for "OFF-SET")
“Read during the recent Enduro Mag test that shorter offset turns better and longer offset is better in a straight line but the difference isnt really measurable.”
I’d have thought it would be the opposite ?
They mentioned shorter wheel base. I guess it brings the wheel under the rider more. Its all a compromise.
If only there was some kind of …parts catalog… that listed the spare CSU-s for each offset (search for “OFF-SET”)
That's possibly the most passive aggressive niche "do a google search" response I think I've seen for a while on here lol. I was more curious to see if people had any idea off the top of their heads but good to know what specific term they're listed under in the parts catalog for the future.
Your request for photographic evidence got me on a quest for an authoritative source, sorry for the passive-aggressiveness :P.
Haha that's ok man, I was keeping things light. Although the Minion DHF is clearly the best front tyre (ducks and waits.......) 😀
Doing it at the lowers is probably more complex as movig the axle means moving the disc mount and redesjgning for all the associated clearance issues
I haven't used a suspension fork for quite a few years now, but it used to be possible with some to alter the offset by reversing the fork crown.
(That requires some dismantling)
Probably showing my ignorance but doesn't shortening the offset just effectively sharpen the head angle by moving the wheel further back, effective to the head tube?
It's a few years old but worth a read......
https://www.bikeradar.com/mtb/gear/article/pushing-the-limits-of-fork-offset-an-experiment-45343/