Only on descents - I'm stumped (and kinda scared)

[maillotpois]

glad you got it fixed (and very impressed with myself for the day )!! I should have mentioned the chain "sticking" but forgot that.

Veronica - do you remember the Sonoma Mtn Rd ride we did when my freehub failed?

[OakLeaf]

It was Mavic (Aksium wheels, so probably a lower grade freehub than what they put on the Ksyriums), and it had over 10K miles. I'd estimate it had been exhibiting the more minor symptoms for at least 1K before it finally died. The hubs have been serviced twice in that time and the freehub at least twice - they may have skipped it this latest time though.

I never checked the wheel hub for play, but I can't imagine I wouldn't have noticed that if it were there - wouldn't it cause squirrely handling, vibration on braking, etc.? I do check the headset and BB now and then, but I've never had one come loose without being able to feel it while riding. Anyway I'll add that to my list of things to check periodically.

[Veronica]

Veronica - do you remember the Sonoma Mtn Rd ride we did when my freehub failed?

The day your bike sounded like a dying pachyderm? yes.

Veronica

[OakLeaf]

Mine was so loud that when I was coming down one hill (completely in control), a car pulled halfway off the road because they were so freaked out by it.