buzbikebklyn1
New Member
- Local time
- 9:31 PM
- Joined
- May 24, 2009
- Messages
- 284
I rode nothing but friction drives for years, both 2 stroke and 4.
I still have the customized rack mount that will accept 3 different kinds of engine bolt patterns with almost any size roller up to 2" with a roller bearing on both sides.
Very efficient, very adaptable because I was never sure what type of engine I was using next.
I converted the old skewer/struts to a more precise cam and lever system I made from scraps of 1/4" aluminum plate for the levers/cams.
I used the old seat stay tubes from a 10 speed for the struts with rod ends for the frame mounts.
One quick yank on the engagement/disengagement cross handle and it freewheeled beautifully.
The problem was it was heavy-
Made out of heavy steel channel with billet aluminum bearing mounts it was no lightweight.
(24 lbs gassed with a GX 31cc honda)
and not nearly as cool looking as a frame mount.
As you can see from the pics its pretty beat up, that small roller is toast but I got lots of miles out of it before I switched to frame mount/chain drives.
I know they make the main rack mount out of aluminum now, should save at least a few pounds.
Heres a few pics for inspiration.
BBB
I still have the customized rack mount that will accept 3 different kinds of engine bolt patterns with almost any size roller up to 2" with a roller bearing on both sides.
Very efficient, very adaptable because I was never sure what type of engine I was using next.
I converted the old skewer/struts to a more precise cam and lever system I made from scraps of 1/4" aluminum plate for the levers/cams.
I used the old seat stay tubes from a 10 speed for the struts with rod ends for the frame mounts.
One quick yank on the engagement/disengagement cross handle and it freewheeled beautifully.
The problem was it was heavy-
Made out of heavy steel channel with billet aluminum bearing mounts it was no lightweight.
(24 lbs gassed with a GX 31cc honda)
and not nearly as cool looking as a frame mount.
As you can see from the pics its pretty beat up, that small roller is toast but I got lots of miles out of it before I switched to frame mount/chain drives.
I know they make the main rack mount out of aluminum now, should save at least a few pounds.
Heres a few pics for inspiration.
BBB
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