Raked triple trees?

[AllanB]

It was an old chopper trick for use with extended forks - a raked offset set of trees allowed one to extend the fork tubes and still had a good 'look' without altering the frames stearing head. Without them you got that sitting up dog look in the front end.

A quick Google looks like they are mainly being used in the States for the same reason ..........

http://pipedreamz.biz/chopperfaq.html

[lostinflyz]

It's more to do with suspension action I think. Cos with a raked tree, it's still pivoting around the headstock angle, same as with a parralel tree with modified offest. But then as the suspension moves, it's not parrallel to the steering angle, so the effective fork offset changes based on suspension position.

I think. I'm not a racer.

youll see the insert is machined at an angle to the actual triple clamp, so as you say about the headstock angle remains the same but the wheel/fork assembly itself is moved closer to the bike, on a smaller angle. This effectively increases trail noticeably (for a sportbike/motard/anything thats not a chopper), as well as shortens the wheel base and modifies the weight distribution on the bike.....

Yes it very much changes on bike dynamics, but so does a normal bike, just not to the same degree.

[lostinflyz]

It was an old chopper trick for use with extended forks - a raked offset set of trees allowed one to extend the fork tubes and still had a good 'look' without altering the frames stearing head. Without them you got that sitting up dog look in the front end.

A quick Google looks like they are mainly being used in the States for the same reason ..........

http://pipedreamz.biz/chopperfaq.html

that product is interesting, it actually is negating the stock steering head and replacing it with offset bearings mounted through the now redundant steering head.

[jellywrestler]

Never ridden anything with one, but I'm told there is next to no feel.

stev lindsell got ninth in the 1994 senior TT on one, (and didn't die) and he was no miracle rider

[Drew]

stev lindsell got ninth in the 1994 senior TT on one, (and didn't die) and he was no miracle rider

I think the handling and traction is supposed to be sublime, my understanding was though that one has no idea how far from the limit they are because if said lack of feel. The steering doesn't get any heavier or lighter with load and grip levels.

[Grumph]

stev lindsell got ninth in the 1994 senior TT on one, (and didn't die) and he was no miracle rider

Oh, I don't know, anyone who can get something Enfield powered around the IOM at just under the ton ain't too bad at miracles....

[GSVR]

I knocked up a pic from the "chopper pdf" so everyone gets the idea of whats meant.

[Mental Trousers]

I knocked up a pic from the "chopper pdf" so everyone gets the idea of whats meant.

Dodgy cut/paste/skew/try-and-blank-out-bits but it illustrates the point wonderfully

[codgyoleracer]

Heres some raked triple trees.......

[GSVR]

Heres some raked triple trees.......

I think I can see the trail too.

[RS2000]

stev lindsell got ninth in the 1994 senior TT on one, (and didn't die) and he was no miracle rider

No miracle, mr Jelly, but an absolutely fast and brilliant rider, maybe a bit of the subject, but he was one of the fastest roadracers in his day, he was 8th by my recollection, not sure if that was F1 or Senior race tho? with the likes of Dunlop. Hislop and Mccallen in front of him he was no slouch, I would consider him a miracle rider to get in the top ten that year