Bicycle TutorBicycle Tutor

Show off your bike!

Post Reply 

Fork spacers

Author Message
Chinbrook jedi Offline
New Member


Posts: 3
Joined: Aug 2008
Post: #1
 
I have just got a new frame and fork. The fork will now need cutting to size. It is an exact replacement for one I broke. The fork is carbon with alloy steerer tube.

On the old fork I had 30mm of spacers, but always thought I could do with going higher. I want to put another 10mm spacer on there. Would there be any problems with doing this?

As an aside how many spacers can you use?

Also I have a combination of 10 mm spacers and 5mm spacers, is it ok to use this combination or should I stick say a 20mm in. Does it matter?
Sep 5, 2008 10:27 AM
Find all posts by this user Quote this message in a reply
DaveM Offline
Veteran Member


Posts: 1,419
Joined: Aug 2008
Post: #2
 
First question is is this a threaded steerer or threadless. On threadless, use whatever spacers you want because the stem holds the headset adjustment. On a threaded steerer, theoretically spacers are no issue, but I wouldn't recommend it. The lock nut on the top of the head set does two things. First it holds the adjusting cup from loosening (unthreading). Second, it stabilizes the cup so that all the bearing surfaces stay exactly parallel. Without the locknut, the cup would rock a little since it has some play on the threads and your weight won't be equally distributed among all the bearings. 1 or 2 thin spacers shouldn't hurt this. But as that stack gets taller, the stability of the whole thing drops and the headset will probably start flexing a little due to weight shifts, steering and braking forces, etc. I don't see that it would "snap-off" or anything, but might definitely shorten headset life.

I've seen people use 1" spacers to allow them to keep their stem higher (while still 'properly' inserted into the fork). They said they'd had no problems. Again, probably ok but not really recommended.

Overall, if you are a heavy or aggressive rider, don't do it. If you do do it, use the least number of separate spacers possible. At least one big one should flex less than a stack of thin ones.
Sep 5, 2008 10:48 AM
Visit this user's website Find all posts by this user Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  RST Neon T10 fork J. Hanley 4 270 Nov 21, 2014 09:36 AM
Last Post: J. Hanley
  Help installing old fork on '05 Rockhopper jlg015 1 658 Sep 10, 2014 08:52 PM
Last Post: cny-man
  80mm to 100mm fork replacement, Yes or No? !TREK4ME! 11 6,742 Aug 24, 2014 05:38 PM
Last Post: tourgee07
  2007 marzocchi dj 3 rv qr-20 fork mod tourgee07 4 859 Aug 24, 2014 05:15 PM
Last Post: tourgee07
  Trek 7 Fork replacement barney 10 983 Jul 31, 2014 06:15 PM
Last Post: barney
  How to disassemble low end fork Higgins617 5 1,360 May 4, 2014 08:09 PM
Last Post: Higgins617
  Non-disc brake wheel on disc brake suspension fork? petko8680 7 1,392 Mar 18, 2014 01:17 PM
Last Post: petko8680
  If I will paint my fork, will insurance still cover it? firewheels 3 1,620 Feb 18, 2014 11:48 AM
Last Post: firewheels
  Stiff fork to Suspension fork problem mtnbikr 8 1,888 Feb 9, 2014 09:08 AM
Last Post: nfmisso
  Finding a replacement fork ... fmechini 15 3,967 Jan 3, 2014 03:24 PM
Last Post: fmechini

Forum Jump:


RSS Forum RSS Feeds / Powered by MyBB

ISSN 1918-3445 © Copyright 2007-2010 Bicycle Tutor / Privacy Policy

feed