Jon, What is the axel to crown and off set recommendations on a fully rigid 29er fork? Are you guys leaning to the 43.5cm ish or 45-46 cm ish range? I will probably be talking to Bill and Joshua in PDX this summer. Got a huge B-day coming up this fall and may "need" me a new 29er to go with the others in the Moots room.
-
Mootzilla,
We are building the current Mooto X, Mooto X Ybb & Mooto X RSL around a 100mm travel fork with an axle to crown of 500.8mm static (no weight on bike)...once the bike has a rider on it we are wanting to see 25% to 35% sag to hit the geometry in the book. So a rigid fork should be about 475-480mm axle to crown. 44mm rake is the call for that as well.Thanks,
Jon@Moots
Posted 1 year ago # -
signalMTB,
No they do not. At that time we were building the MX Ybb around an 80mm fork travel. So in that case we used an axle to crown of 480.8mm (Fox RLC) 44mm rake. Take in some sag @25% and you would want a rigid fork that measures around 465 for best geometry match & handling.Let me know if you have any other questions....
Thanks,
Jon@Moots
Posted 1 year ago # -
mootini
MemberJon - does the fact that you are building around a 100mm fork explain why the current MXRSL frames are slightly larger size for size than say back in '09 when they were built around a 80mm fork? Asking because I have a 19" MXYBB that has a 23.5 top tube and I see the 19" '12 model is at 24.5 and the 18" is at 23.5. Very close to pulling the trigger on one, just trying to cover all the bases. Still think I would go with a 19" as I think I'd have too much seat post hanging out there with the 18". FWIW, I'm 6' even and ride the MXYBB with a 120 stem. Thoughts or comments welcome - thanks!
Posted 1 year ago # -
mootini - I had the same concern when I went from a 2011 to a 2012 Mooto X YBB.
My understanding is that the TT was increased in length to make a more stable bike (I thought that the 2011 was pretty stable!) To address the longer TT in my case I was put on the same size frame and the stem length was decreased from 110mm to 100mm.
So far I can say that the 2012 is even better than the 2011. The longer TT does make it even more stable on fast and very steep (stomach on the seat) descents, yet it is still quick through switchbacks.
The one very, very minor issue is the Fox F29 fork. The 2011 had an 80mm fork that was actually a 100mm fork with a 20mm spacer. There is a little bit of chattering when braking on very steep hills. When I go to replace it, I might pay the weight penalty and buy a 120mm fork and space it down to 100mm.
Posted 1 year ago # -
Yes, we increased the TT lenght per size in order to make them a touch more stable. It has little to do with the fork travel....we just find that a 100mm fork really gives you 80mm+ of "real" travel. More in the sweet spot so to speak..
Mootini...go with the 19'' size at your height....You'll love the longer top tube coupled with the shorter stem...I'm right at 6' myself....Layback post...90mm stem (for now)....I've been a life long 19'' Moots size and this year find myself on a new MX RSL 19'' with a 90-100mm stem. I haven't settled out on the stem lenght yet, but really love the handling of the bike with a shorter stem.
I also went with a Fox 100mm fork w/15mm thru axle....worlds of difference in front wheel movement in all situations.
Looking forward to a long season on dirt!
Jon@Moots
Posted 1 year ago # -
mootini,
I'm running a Moots Open Road RSL stem 90 x -6....solid.Jon@Moots
Posted 1 year ago # -
Jerome
Member@mimdesign @Jon
Hi,
Could you go back a second to the comment on the 2011 Fox 29er fork.
Are they really shorter ? I do ride 2 one on my 2012 MX RSL the other on my 2012 MXYBB.
I was told that originally they had 80 mm of travel so I send them back to Fox to have the ring removed and the Fork travel extended.
Did they fudge me ? and most important in that case I am riding bikes out of theirs specifications.
thank youBest
Best
jérômePosted 1 year ago # -
mootini - On my 18-inch Mooto X YBB frame, I am running a 100mm, -6... red. Because red = fast!
Jerome - I'm not sure that I understand your question.
With the Fox F29 forks...
- The 100mm version can be shortened to 80mm
- The 120mm version can be shortened to 100mmOn my Lynskey, I am running a 120mm that is reduced to 100mm and on my Moots Mooto X YBB I am running a 100mm that was previously shortened to 80mm for my 2011 Mooto X YBB (I opened the fork, pulled the 20mm spacer and changed the fluid). Both have the 15QR (I couldn't agree more with Jon's 15QR comment), but I feel that the 120mm version is a little stiffer probably due to the increased overlap of the upper and lower legs.
I think that the only way that you will know for sure if Fox set the fork to 100mm is to search for the measurement from the crown race to the fork dropouts... then measure your fork. I can't see why they wouldn't have done what they said that they would do.
Posted 1 year ago # -
nigeh
MemberMootzilla, as a fork recommendation I'm running the Niner carbon fork in my 2011 RSL and it's excellent.
As a comment in frame size - I'm 6'2" and run an 18" frame with a 120mm stem - which I feel fits me fantastically, so I'm really interested in the comments on longer top tubes etc. I used to have 19" YBB and felt it was too big.
I'm currently thinking about a second RSL to run as a single speed - and was thinking of looking for another 18" 2011 frame as it really seems to do the job for me. ( I also like the astheic of the 2011 more than the 2012 ;-))
May be its the fact that I'm a bit of a die hard roadie and this set up suits my road style as well - or that I have ejust not tired the longer TT properly - question is how do it try a 19" frame..?
Any comments please?
PS: and I'm still running standard axles on wheels - must be really old school ;-))
Posted 1 year ago # -
Becky12393
Member<P>so you may also use these kind of while in the whole yr. It is extremely vogue, Ralph Lauren Denmark indeed to acquire a single try of women ugg boots is definitely an ultimate preference in the 2010.
<P>As Ralph Lauren Danmark well as unique decision, women of all ages can Ralph Lauren Skjorterdiscover over the different technique these products kinds which generally qualickly stick out from group.Posted 1 week ago #
Reply
You must log in to post.