Replacement Fork

[Ramzious]

Thinking of replacing fork on 29er with this: http://qballbikes.com/qstick.html

Any thoughts on this fork?

[Bill]

Looks pretty durable, made from CrMo so I don't see any weight issues.

[Joe_W]

Is the fork geometry the same as the original one? If no: be careful, could render the bike unrideable.

[Ramzious]

New (used) fork is on bike and rides fine. Geometry was very similar as it was a suspension corrected cromo steel 29er fork. Steer tube was 1/4 inch shorter so 1 spacer taken out of stack. Ride felt good tonight, did not feel as "soft" but was good.

[davecicale]

(08-09-2010, 06:50 AM)Joe_W Wrote:  Is the fork geometry the same as the original one? If no: be careful, could render the bike unrideable.

This sounds like what I'm dealing with. I have an older bike and have replaced the fork, but it doesn't ride right. ( understeer? ) I'm going to try a new headset. I guess I need to find a book or something that explains the fork geometry your talking about.

[xerxes]

(10-20-2010, 09:42 PM)davecicale Wrote:  This sounds like what I'm dealing with. I have an older bike and have replaced the fork, but it doesn't ride right. ( understeer? ) I'm going to try a new headset. I guess I need to find a book or something that explains the fork geometry your talking about.

A new headset won't help. When you're changing a fork, it's the axle to crown length and the fork offset that will determine how the bike rides compared to the original. With a similar offset, a longer fork will decrease the head angle and increase the trail and make the steering slower, a shorter fork will have the opposite effect and make the steering quicker and possibly too twitchy.

Here's some explanation: http://en.wikipedia.org/wiki/Bicycle_and_motorcycle_geometry