Replacing front fork on a Giant expression , help needed
#1
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Senior Member
Joined: Jul 2014
Posts: 397
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From: Ireland
Replacing front fork on a Giant expression , help needed
Howdy ,
I have a Giant hybrid here and there is something seriously wrong with the front fork , it is both bent and out of parallel .
I am looking to replace it and could do with a little guidance .
It's 1 1/8 threaded steerer .
So I guess I need to match it with a fork with the same steerer lenght .
My question is what about the actual lenght of the fork below the crown race to the dropouts ? I'm sure this is crucial as if it's shorter or longer the bike will feel wierd , But I don't see this marked on the forks on eBay.
Also the race , is it important ? The current fork shoots straight down but I see many forks with a curve , how important is it to match this ?
Thanks for any pointers
J
I have a Giant hybrid here and there is something seriously wrong with the front fork , it is both bent and out of parallel .
I am looking to replace it and could do with a little guidance .
It's 1 1/8 threaded steerer .
So I guess I need to match it with a fork with the same steerer lenght .
My question is what about the actual lenght of the fork below the crown race to the dropouts ? I'm sure this is crucial as if it's shorter or longer the bike will feel wierd , But I don't see this marked on the forks on eBay.
Also the race , is it important ? The current fork shoots straight down but I see many forks with a curve , how important is it to match this ?
Thanks for any pointers
J
#2
Senior Member

Joined: May 2003
Posts: 4,057
Likes: 166
From: Mountain Brook. AL
Assuming your bike is a 700c wheel size, that is the size fork you will need. The steering tube length should be close to the
steering tube length of the fork that is on the bike. Too short and it won't clear the headtube/headset, too long and you
may not have enough thread to tighten the headset down (thread ends before the top of the headtube). The steering
tube length will be specified in the fork description.
Matching the curve is not particularly critical, most carbon forks are straight these days, steel is more likely to be a bit
curved but much less than decades past.
steering tube length of the fork that is on the bike. Too short and it won't clear the headtube/headset, too long and you
may not have enough thread to tighten the headset down (thread ends before the top of the headtube). The steering
tube length will be specified in the fork description.
Matching the curve is not particularly critical, most carbon forks are straight these days, steel is more likely to be a bit
curved but much less than decades past.
Last edited by sch; 06-30-18 at 04:03 PM.
#4
Senior Member

Joined: Jun 2015
Posts: 1,936
Likes: 1,155
From: Down Under
Bikes: A steel framed 26" off road tourer from a manufacturer who thinks they are cool. Giant Anthem. Trek 720 Multiroad pub bike. 10 kids bikes all under 20". Assorted waifs and unfinished projects.
No need to match the length if you go threadless!
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