HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 11 posts ] 
Author Message
PostPosted: Sun Aug 25, 2013 7:04 pm 
Offline

Joined: Fri Jul 28, 2006 1:34 pm
Posts: 114
Location: Midwest USA
If I was looking at 100 travel on a new build 650B frame, should I use a Lefty XLR 100 for 26" or 29" wheel?
Thanks.

_________________
CX Road MTB
Power by Design Coaching / USAC Coach


Top
 Profile  
 
PostPosted: Sun Aug 25, 2013 10:12 pm 
Offline

Joined: Mon Oct 15, 2007 9:28 pm
Posts: 915
Speedy- what kind of frame?
Ask your builder?
FWIW- I would use one of the new Fox forks for 650b-


Top
 Profile  
 
Posted: Sun Aug 25, 2013 10:12 pm 


Top
  
 
PostPosted: Sun Aug 25, 2013 10:25 pm 
Offline
User avatar

Joined: Thu May 26, 2005 7:52 am
Posts: 2765
Location: Malmö, Sweden
From what I have seen a lefty for 26" will hit the front wheel fully compressed with a 650B wheel so you will have to use some kind of spacer to reduce the travel - not a big operation but needed! Don't think it will be the same with a 29" fork.

_________________
My blog


Top
 Profile  
 
PostPosted: Sun Aug 25, 2013 11:44 pm 
Offline

Joined: Fri Jul 28, 2006 1:34 pm
Posts: 114
Location: Midwest USA
Mads Kock wrote:
From what I have seen a lefty for 26" will hit the front wheel fully compressed with a 650B wheel so you will have to use some kind of spacer to reduce the travel - not a big operation but needed! Don't think it will be the same with a 29" fork.

Thanks!

_________________
CX Road MTB
Power by Design Coaching / USAC Coach


Top
 Profile  
 
PostPosted: Sun Aug 25, 2013 11:47 pm 
Offline

Joined: Fri Jul 28, 2006 1:34 pm
Posts: 114
Location: Midwest USA
boots2000 wrote:
Speedy- what kind of frame?
Ask your builder?
FWIW- I would use one of the new Fox forks for 650b-


singlspeed frame, will do but don't recall them doing much with the lefty (diff. than my usual mo)
Was leaning heavily toward the Fox fork as I have been happy with the one on the geared KE 27.5 (although that's a 26 fork)
Had read bad things re last year's CTD feature, enough that folks were sending in their forks for updated internals in the new forks.
Leaning toward Lefty as it knocks an easy pound off. Though I know you're not a Lefty fan.

_________________
CX Road MTB
Power by Design Coaching / USAC Coach


Top
 Profile  
 
PostPosted: Tue Aug 27, 2013 2:59 am 
Offline

Joined: Mon Sep 27, 2010 8:38 am
Posts: 497
All the 26" ones clear.


Top
 Profile  
 
PostPosted: Tue Aug 27, 2013 3:11 am 
Offline

Joined: Fri Jul 28, 2006 1:34 pm
Posts: 114
Location: Midwest USA
ricerocket wrote:
All the 26" ones clear.


If the 2013 100 travel 26" fork clears that's going to be the one.

Did they change the ability to add/remove spacers in the redesign?

_________________
CX Road MTB
Power by Design Coaching / USAC Coach


Top
 Profile  
 
PostPosted: Tue Aug 27, 2013 3:48 pm 
Offline

Joined: Mon Sep 27, 2010 8:38 am
Posts: 497
Yes and no, from what I've read, you need the "full travel" to take advantage of the automatic bearing reset. Maybe you can put the spacer underneath the reset spacer?

I'd call Craig and MendonCycleSmith if you really want to run a spacer, he knows Leftys inside and out.

I haven't been very active on the 650b forums after I built mine, but iirc, everything up to the largest 650b x 2.35" Nobby Nic has cleared up since when I stopped reading 6 months ago. It "gets close", but since it's not like a fork arch like all other forks, it doesn't trap leaves/rocks/etc.


Top
 Profile  
 
PostPosted: Thu Aug 29, 2013 8:28 pm 
Offline
User avatar

Joined: Sun Dec 12, 2004 2:49 pm
Posts: 843
Location: Mårslet, Denmark
If you want to be safe do ad I did and buy the 29" which is the same as the Ultra with 120mm travel. You can always space it down to the same axel-crown height as the 100mm travel version and limit the travel to not hit the tyre.

_________________
It's online again:The Machinist

My CAAD10:http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=109014


Top
 Profile  
 
PostPosted: Fri Aug 30, 2013 3:15 pm 
Offline

Joined: Mon Sep 27, 2010 8:38 am
Posts: 497
Yeah, but that raises your BB, slackens your HTA, without giving you extra travel.

The 2013 Leftys also have different bearings on the 26 and 29 versions, I'm not sure it's as simple as spacing it down anymore.


Top
 Profile  
 
PostPosted: Fri Aug 30, 2013 3:41 pm 
Offline

Joined: Fri Jul 28, 2006 1:34 pm
Posts: 114
Location: Midwest USA
Humm, this all has me leaning toward the new 27.5 Fox. After looking at weights, etc. there just isn't the huge difference their used to be.
edit: also found an interview with Cannondale tech, they say 29" fork to safely clear all 27.5 tires,

from the bikerumor interview
Quote:
If you’re curious as to whether you could put a 650B wheel on this, Murray says you could put it on the 29er Lefty. On the 26″ model, you’d be cutting clearance really tight and it’s not recommended. They build in 20mm of clearance for a 26×2.3 tire at the top of the tire to the bottom of the lower fork clamp. That’s under full compression and deflection, so you’d have to hit something really hard, really fast and at an aggressive angle to get the tire that close, but on a 650B wheelset with a similarly fat tire, you’d risk hitting the tire on the “crown”.

_________________
CX Road MTB
Power by Design Coaching / USAC Coach


Top
 Profile  
 
Posted: Fri Aug 30, 2013 3:41 pm 


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 11 posts ] 


Who is online

Users browsing this forum: Google [Bot] and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. 650b wheelsets for cannondale lefty - from bikestacja.pl

in MTB

fivethirtyonepm

2

506

Sun Apr 27, 2014 1:06 pm

quattrings View the latest post

There are no new unread posts for this topic. 650B?

in MTB

Juanmoretime

6

587

Fri Jul 18, 2014 5:25 am

Starter View the latest post

There are no new unread posts for this topic. Anders Scalpel 650b

in Introduce Yourself / Gallery - Please use metric weights.

Anders

4

576

Wed Jul 16, 2014 2:09 am

CulBaire View the latest post

There are no new unread posts for this topic. Ritchey P-650b 9.4kg Finished

in Introduce Yourself / Gallery - Please use metric weights.

drider85

12

2438

Wed Apr 16, 2014 10:47 pm

Quinn039 View the latest post

There are no new unread posts for this topic. Enve 650B XC wheelset?

in MTB

boots2000

6

910

Fri Feb 28, 2014 1:47 am

jimborello View the latest post


It is currently Mon Sep 15, 2014 3:20 am

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB