MMBA

by **slukomski** » February 24th, 2012, 2:32 pm

So I have a 29er with Reba fork and it is set up for 100mm. It came with spacers to allow me to change to 80mm. Since I like to tinker with my bike I'm tempted to change it for the heck of it. It appears to be a involved process to change, and am wondering if it's worth it or not. I'm 5'11" and the bike is a medium.

by **utabintarbo** » February 24th, 2012, 2:48 pm

It really depends on what your frame was designed to. Dropping the travel will steepen the head angle, and likely make the bike seem more "twitchy". If the bike handles well now, I probably wouldn't mess with it.

by **Sortaslow** » February 24th, 2012, 3:23 pm

I've been wanting to do this on my sir9. I want it a little more twitchy or what I call responsive.

by **Leroi Brown** » February 24th, 2012, 3:25 pm

I think you may end up missing that extra 20mm of travel in the long-run.

by **xcrdr** » February 24th, 2012, 3:36 pm

It's not that hard to do. Videos on youtube get you through it. I don't always think it's worth the time. If you really think it's too slack right now than do it. Otherwise maybe a little less air will give you the sag you want. With the Reba quite often you can boost up the negative chamber a bit.

by **Sortaslow** » February 24th, 2012, 5:22 pm

Leroi Brown wrote:I think you may end up missing that extra 20mm of travel in the long-run.

I know! Love my suspension! I only ponder.

by **slukomski** » February 24th, 2012, 6:35 pm

I love to tinker with the bike, it's a sickness. I like the suggestion of dropping the air pressure to test it out. That's easy enough. Thanks for the replies!

by **Will_Ott** » February 25th, 2012, 11:52 am

If you pump up the "negative air" higher then the "positive air" it will compress the fork. Then you can still run your normal "positive air". Maybe that would give you a quick and dirty way of testing this.

Also, you can get a Cane Creek Angle Set, which is a angled headset to steepen (or slacken) your head-tube angle by 0.5 to 1.5 degrees. This would allow you to run full travel.

by **SteveF** » February 25th, 2012, 12:59 pm

I can think of two--no, three--reasons you'd want to do this. (the last two reasons are potentially related)

You can't get your bars low enough.
You want the handling to be quicker
Your frame is designed around an 80mm fork. (i.e. Vassago's I believe)

MMBA

100mm vs 80mm fork on 29er

100mm vs 80mm fork on 29er

Re: 100mm vs 80mm fork on 29er

Re: 100mm vs 80mm fork on 29er

Re: 100mm vs 80mm fork on 29er

Re: 100mm vs 80mm fork on 29er

Re: 100mm vs 80mm fork on 29er

100mm vs 80mm fork on 29er

Re: 100mm vs 80mm fork on 29er

Re: 100mm vs 80mm fork on 29er

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