Modifying a bike for low trail.
#1
Thread Starter
Senior Member
Joined: Aug 2009
Posts: 194
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From: Montreal
Bikes: Surly LHT and Opus Urbano
Modifying a bike for low trail.
Hello all. 
There's a discussion at the Surly's Google group about putting on an LHT frame a fork with more rake than the standard one has (43 mm) to make of it a French randonneur style bike. I am wondering if this really could be so simple or rather if there isn't much more to do to turn a LHT into a low trail bike and have it handle well. After all, wasn't the whole frame designed with high trail in mind?
Thank you for your opinions on that matter.

There's a discussion at the Surly's Google group about putting on an LHT frame a fork with more rake than the standard one has (43 mm) to make of it a French randonneur style bike. I am wondering if this really could be so simple or rather if there isn't much more to do to turn a LHT into a low trail bike and have it handle well. After all, wasn't the whole frame designed with high trail in mind?
Thank you for your opinions on that matter.
#2
Banned
Joined: Aug 2005
Posts: 5,115
Likes: 4
As far as the steering is concerned it is the front end that is doing the heavy lifting. If your target bike also had a 72 degree steering angle, putting a different fork on it would get you there, but the fork has to be designed to have the same height, the extreme would be putting a 29er shock replacement rigid fork on there! 
Kogswell did a lot of messing around with fork angles and even stocked some Porteur forks with different angles in various wheel sizes.

Kogswell did a lot of messing around with fork angles and even stocked some Porteur forks with different angles in various wheel sizes.





