Grant Thomson
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  • Glasgow
  • United Kingdom
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Grant Thomson's Discussions

fork judder
11 Replies

just built up a columbus xwing and the front fork judder is terrible. Anyone got a similar bike and solved a similar problem? (or just tips to solve it generally!!) ta Avid CR520 brakes on a carbon…Continue

Started this discussion. Last reply by Tony_J Feb 4, 2012.

Wanted: A Long Shot!
5 Replies

Further to my issue with the columbus forks without the plates at the brake bosses to take the brake springs: - I spoke with a chap at Paul Milnes who was very helpful and contacted his supplier in…Continue

Started this discussion. Last reply by Grant Thomson Nov 11, 2011.

columbus carbon fork. which brakes?
18 Replies

building up an x wing but the forks dont have holes at the brake bosses. what brakes will work here? i had bought the planet x frogs bollox cantis but they need holes. the rear bosses on the frame…Continue

Started this discussion. Last reply by Grant Thomson Nov 4, 2011.

Planet X Model B wheels for Cross?
4 Replies

Model Bs are the only 700c wheels I have and I was going to use them for the rest of the cross season now I have a proper cross frame. Think they have 24 and 28 spokes front and rear, respectively. …Continue

Started this discussion. Last reply by Grant Thomson Nov 1, 2011.

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Latest Activity

Tony_J replied to Grant Thomson's discussion fork judder
"I went over to mini-v's from canti's and that helped a lot, prob because i got sick of constantly having to tweek the cantis i still get some judder, when turning hard for some reason, but its nothing like it was. as stated above a decent…"
Feb 4, 2012
Grant Thomson replied to Grant Thomson's discussion fork judder
"thanks John.  Yup, the judder is horrendous on the road - feels like the headset is totally loose but it definitely isn't."
Jan 31, 2012
John Parkinson replied to Grant Thomson's discussion fork judder
"Hi Grant I have the same bike/fork and brake as you I guess, and got so frustrated with the judder and associated faffing I ended up doing this V-brake and Travel Agent conversion:     It looks a bit Heath Robison in this photo and…"
Jan 31, 2012
Grant Thomson replied to Grant Thomson's discussion fork judder
"thanks all.  will have a tinker about with it at the weekend and see what helps"
Jan 26, 2012
Steve Smales replied to Grant Thomson's discussion fork judder
"Try properly torquing the headset bearing preload. I had dramatic results after spending a fortune on pads/brakes etc. You'll need a low range torque wrench as it needs 3-4 NM"
Jan 25, 2012
Greg Keller replied to Grant Thomson's discussion fork judder
"Fork shutter sucks. Some forks are worse than other as well due to their make up. Indeed per comments above, toe-in of the pads is critical and helpful (I literally had to bend the (brake) posts on TRP Magnesium's (be careful not to…"
Jan 24, 2012
Neil Mansfield replied to Grant Thomson's discussion fork judder
Jan 24, 2012
Grant Thomson replied to Grant Thomson's discussion fork judder
"OK, thanks Barry will give that a try"
Jan 24, 2012
barry davies replied to Grant Thomson's discussion fork judder
"are the front brake shoes toe-ing in correctly ???? try some 'softer' compound front pads, had a friends carbon forked X bike and it was terrible for shaking but reset the front toe-in and fitted softer pads and was ok... might help…"
Jan 24, 2012
Grant Thomson replied to Grant Thomson's discussion fork judder
"cheers matthew - pretty sure the fork isn't drilled - think it's full carbon unfortunately."
Jan 24, 2012
Matthew Webber replied to Grant Thomson's discussion fork judder
"If you can add a fork mounted brake hanger, that ought to do it. My fork was already drilled. Yours may not be..."
Jan 23, 2012
Grant Thomson posted a discussion

fork judder

just built up a columbus xwing and the front fork judder is terrible. Anyone got a similar bike and solved a similar problem? (or just tips to solve it generally!!) ta Avid CR520 brakes on a carbon columbus fork, BTWSee More
Jan 23, 2012
Grant Thomson replied to Grant Thomson's discussion Wanted: A Long Shot!
"Michael,   Thanks for the offer however my seller came good and the bits had arrived in the post yesterday when I got home from work.   Thanks anyway :-)   Grant"
Nov 11, 2011
Grant Thomson replied to Grant Thomson's discussion Wanted: A Long Shot!
"Brilliant, thanks Michael.   The forks John had were not suitable so your bits(!) may be the golden ticket!   However, it turns out the fella I bought the framset from has now found the parts and has said he is posting them to me so…"
Nov 10, 2011
Michael Guilford replied to Grant Thomson's discussion Wanted: A Long Shot!
"Grant   I was scrabbling through a box of bits and rememberign your dilema I found what i think are a couple of brake bosses with holes in for springs. I am not sure what bike/fork  they came off, but looking at them I think they…"
Nov 10, 2011
Grant Thomson replied to Grant Thomson's discussion Wanted: A Long Shot!
"legend John, thanks mate.   Did you avoid the carnage at Ballater???"
Nov 9, 2011

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