Lefty + Syntace FlatForce Stem = ?

Discuss light weight issues concerning mountain bikes & parts.

Moderator: Moderator Team

Post Reply
User avatar
maxle
Posts: 30
Joined: Thu Nov 15, 2012 8:57 pm
Location: Germany

by maxle

Hey crazy Guys,
first of all, sorry for my bad english. I have a question for you:
Is anybody in here, who tried to combinate a Leftyfork with Syntace new stem called "Flatforce" ( and a "normal" 31,8 Flathandlebar ) ? I guess there might be a problem of contact between bar and lefty. So if anyone knows, please tell me...
Kind regards from germany,
maxle
You only own a bike when you've violated every single term of guarantee.

User avatar
dwaharvey
Posts: 493
Joined: Thu Oct 26, 2006 8:54 pm
Location: USA

by dwaharvey

I haven't tried this exact combo, but I have tried something like it: I was trying to see how short I could make the stem so that my wife could borrow my bike. The bike has an MCFK 6 degree bar and the shortest I have been able to run is a 90mm 6 degree stem (RaceFace Turbine). I tried an 85mm Loaded AmXC stem with 5 degree bend but that was 1mm too short to allow the bars to not interfere with the upper clamp and end-cap of the Lefty.

If I remember right the Flatforce comes in max 77mm length, and the problem is exacerbated by the angle being steep so that the bar is less far from the fork leg for a given stem length.

So until they come out with the longer Flatforce stems that they have promised I don't think this combo will work... unless you got one of these
bars that bend forwards significantly and might clear the fork leg (from the pics it looks like the bar bends forwards about 15mm or so whereas my bar bends back about 3mm.... so maybe you gain 18mm or so of clearance which might just be enough... but it'll be close and you'd have to try it and see)

User avatar
maxle
Posts: 30
Joined: Thu Nov 15, 2012 8:57 pm
Location: Germany

by maxle

Thank you very much ! You were right in all points. I found a nice tool yesterday for stem calculations:
http://alex.phred.org/stemchart/Default.aspx

So in the end a 80mm stem for 31,8 bars won`t work with Lefty.
You only own a bike when you've violated every single term of guarantee.

justaute
Posts: 227
Joined: Fri Jan 04, 2013 7:17 pm
Location: UT/TX/PA, USA

by justaute

FWIW...Syntace is purportedly making longer stems after the European Bike Show. I read the new lengths will be 88mm and 99mm.

User avatar
cyclemanpat
Posts: 1716
Joined: Thu Jan 15, 2004 9:44 pm
Location: Kentucky, USA

by cyclemanpat

would the 88mm stem work on a lefty fork then?
to go faster....just pedal harder!

User avatar
andreszucs
in the industry
Posts: 470
Joined: Mon Nov 28, 2011 7:15 am

by andreszucs

yeah I'm digging the internet to find this answer as well Anyone know what would be the shortest Flatforce suitable with the lefty fork?

drider85
Posts: 184
Joined: Fri Apr 13, 2007 4:53 pm

by drider85

If your looking for a short low stem for the Lefty maybe look at Leonardi factory. It looks like the shortest the sell for the general left is the 95mm. Lefty Maxx offset in 80mm length. I don't know what the offset is on a FSI.

Image

User avatar
the_marsbar
Posts: 1022
Joined: Wed May 13, 2009 5:23 pm
Location: Denmark
Contact:

by the_marsbar

On a Lefty 2.0 you can easily get away with a 60 mm stem (that's what I'm currently running). 50 mm would probably be fine.

pptso
Posts: 14
Joined: Sun Aug 30, 2015 8:05 pm

by pptso

It depends on your bars, i use ritchey's flat 10 degree bars, because the bars go out first then go back I was able to fit a flatforce 77mm stem, but i had to use a stem spacer with the MCFK steerer bc the stem hits the lefty clamp, so the bars were not as low as I wanted
Instead I switched to a leonardi stem 80mm with -25 angle and with the ritchey 10 degrees flat bars it barely clears but it gives me a nice low and tight handling cockpit.
I prefer the position with the leonardi stem even though the setup is about 100 grams heavier than using the flatforce stem, again the 10 degree bend in the bars helps make the clearance not sure if straight flat bars will fit
Hope this helps

BoostedGP
Posts: 7
Joined: Tue Sep 01, 2015 2:41 pm

by BoostedGP

I have the Flatforce 88mm stem with a lefty Hybrid. works and fits perfectly.

short than the 88mm syntace stems will not work, not enough clearance

User avatar
andreszucs
in the industry
Posts: 470
Joined: Mon Nov 28, 2011 7:15 am

by andreszucs

BoostedGP wrote:I have the Flatforce 88mm stem with a lefty Hybrid. works and fits perfectly.

short than the 88mm syntace stems will not work, not enough clearance


Good to know, I have a 99mm on my bucket list, I guess I will consider the 88mm now.

So the handlebar is clearing on the same height as the alloy clamp portion of the lefty? Or is actually even lower then that like...in front of the carbon smaller diameter tube?

Maybe a picture would help thanks!

jimborello
Posts: 285
Joined: Sun May 31, 2009 5:07 am

by jimborello

Here you go, Im currently using a 88mm flat force with a flat schmolke bar and it works great. Ill try to take some more pictures tomorrow
Attachments
IMG_0289 (1).JPG
Yeti ASR lefty

Jepas
Posts: 69
Joined: Wed Feb 22, 2012 6:56 pm

by Jepas

Sorry to dig it up but...

Can any owner of a FlatForce specify the real stack height of each FlatForce stem (77, 88, 99)?

I have a problem with it because the 111mm stem has 33mm os stack height (too high for my bike since I am planning to use it under a Lefty top bridge).

BoostedGP
Posts: 7
Joined: Tue Sep 01, 2015 2:41 pm

by BoostedGP

Mine is an 88. 32mm


Sent from my iPhone using Tapatalk

Post Reply
  • Similar Topics
    Replies
    Views
    Last post