It s the distance that the fork blades angle forwards relative to a perpendicular line drawn through the fork s steerer.
Standard road bike fork rake.
Trail is a key determining factor for how a bike handles.
So most shallow angle bikes have plenty of fork offset to compensate.
Well fork rake is only one ingredient in the steering equation.
Head tube angles range from 71 5 degrees to 74 5 degrees.
This is what really influences how a bike will react to rider input.
Fork rake comparison for 57cm bikes.
As rake increases trail.
In bicycles fork offset is also called fork rake.
Forks have several key dimensions which include.
Bicycle forks usually have an offset or rake not to be confused with a different use of the word rake in the motorcycle world that places the fork ends forward of the steering axis this is achieved by curving the blades forward angling straight blades forward or.
Road racing bicycle forks have an offset of 40 50 mm 1 6 2 0 in.
Fork rake offset and trail.
Let s talk about trail to understand the rest.
Fork rake and offset.
The combination of head angle fork rake and trail has a significant impact on the handling of the bike.
The product of the head tube angle and the fork rake is the trail.
Mrp s long travel 27 5 inch forks go down to 39mm and also come in a 44mm offset.
The amount that the fork is offset from this imaginary line is known as fork rake in road bikes or fork offset in mountain.
Cane creek offers their forks in the two standard offsets 44mm and 51mm.
Generally speaking with a proper fork rake to yield a trail from 55 to 60 mm of trail the head angles in this range are fairly stable at high speeds.
Fork rake or fork offset is a key factor in the handling of a bike.
Cyclingdeal bicycle bike rack for truck bed ute fork mount type quick release or 15 x 100mm or 20 x 110mm heavy duty 4 1 out of 5 stars 85 17 90 17.
Touring forks 45 52mm road forks 40 45mm cx forks 45mm.
Generally less rake will shorten the wheelbase and result in more nervous handling a characteristic often sought by race riders battling.
It is the difference between the fork rake or offset and the steering axis.
To understand fork rake imagine a straight line continuing from the centre of the fork s steerer tube all the way to the ground.
Where people get confused is with the inverse relationship between rake and trail.
A 2007 nevada classic 750 with a rake of 27 5 fork offset.
Offset length width steerer tube length and steerer tube diameter.
Fork offset or rake is a key aspect of how to alter a bikes handling.