Donut Derelicts
- Thread starter msrfan
- Start date
Easy Twist
New Member
Yep. Engineered the trail right out of it.
Hey guy's. Easy twist here owner of the copper bobber. Please enlighten me with what your referring to in your drawing and comment about the trail. I would think its about the geometry. Will say the bike rides amazing. Very tame and stable. Thanks
Easy Twist
New Member
Good evening, Easy Twist here owner of the Copper Bobber. Hey, help me understand the deal with the forks geometry. Please enlighten..
Gbrebes
Well-Known Member
Hey Easy Twist,
I would say if you have been riding it and it seems stable at speeds, it should be ok. The way you measure the trail of your front fork geometry is you draw a straight line that follows the middle of your fork head tube and continues down to the ground. When you are measuring this you should have both tires on the ground as it would be while riding.
So you get a long straight edge, hold it along the mid section of the head tube and put a piece of tape on the ground where the straight edge lands. You then take a large carpenter's square and line it up with the axle of your front wheel and put a piece of tape on the ground where that square lands.
The front axle mark should be behind the head tube mark, in other words closer to the back of the bike than the head tube mark. The distance between the two marks is your trail. I believe a trail of 2 to 3 inches is optimal, but don't quote me on that.
By the looks of the photo and the superimposed lines, it looks as if you have a trail of zero or even possibly a positive trail where the head tube mark is behind the front axle mark. But photos are misleading, I notice that your wheel is turned to the side, and that could affect the photo.
So I would take the measurements of the head tube angle and the front axle and go from there. Let us know what your measurements are.
Hope that helped,
Gilbert
I would say if you have been riding it and it seems stable at speeds, it should be ok. The way you measure the trail of your front fork geometry is you draw a straight line that follows the middle of your fork head tube and continues down to the ground. When you are measuring this you should have both tires on the ground as it would be while riding.
So you get a long straight edge, hold it along the mid section of the head tube and put a piece of tape on the ground where the straight edge lands. You then take a large carpenter's square and line it up with the axle of your front wheel and put a piece of tape on the ground where that square lands.
The front axle mark should be behind the head tube mark, in other words closer to the back of the bike than the head tube mark. The distance between the two marks is your trail. I believe a trail of 2 to 3 inches is optimal, but don't quote me on that.
By the looks of the photo and the superimposed lines, it looks as if you have a trail of zero or even possibly a positive trail where the head tube mark is behind the front axle mark. But photos are misleading, I notice that your wheel is turned to the side, and that could affect the photo.
So I would take the measurements of the head tube angle and the front axle and go from there. Let us know what your measurements are.
Hope that helped,
Gilbert
This my help also...................Curt
https://www.google.com/search?biw=1...sedr...0...1c.1.64.hp..1.14.744.0.GVsykMnhjjc
Here is a good explanation .......
http://www.chopperhandbook.com/rake.htm
https://www.google.com/search?biw=1...sedr...0...1c.1.64.hp..1.14.744.0.GVsykMnhjjc
Here is a good explanation .......
http://www.chopperhandbook.com/rake.htm
Last edited:
racie35
Active Member
Any of em sound like this?
https://www.youtube.com/watch?v=M8PHNrdFQ1c
https://www.youtube.com/watch?v=M8PHNrdFQ1c
