One guy I was talking to said something about the front end being old-fashioned and a mono conversion being modern seems like an odd combo. In my mind, this will be a cafe build, and I don't see anything about going girder that makes the bike any less of a cafe racer. I expect that in addition to looking good, the girder should be stiffer and possibly lighter than the stock setup, and will definitely have better damping due to the modern shock sprung and valved for the bike. I am planning to have the girder up front and a monoshock conversion on the rear (with a triangular brace on the swingarm and a linkless shock setup running to the frame's backbone - Vincent or 900SS style). One thing I'm surprised at, though, is that people seem to assume that running a girder automatically makes the bike a chopper or a bobber. I'll be replacing the shock with a unit custom-made for my application, and will do some tuning to the geometry to get it as close as possible to stock. It'll need some work to make everything fit, but it was a good deal and should serve as a good starting point. I'm still in the planning phase for my 550, but did buy that P&P pictured above. The stem threads into the lower tree.īumping my own thread again just to talk about the aesthetics, engineering, and philosophy of girders. It's relatively simple to get a stem made that fits your neck and then use spacers between the bottom tree and the lower neck cup to make the rockers parallel. So that's already going to drop your trail if you keep stock rake in the neck.Ī lot of the P and P's were made with 7/8" sporty stems. I believe the offset from the neck on the P and P is 5". Dont use it unless you're raking your bike out. The extra hole behind where the lower rocker mounts to the legs is 5* internal rake. I did this because it's easy to tighten the crap out of them and lock up the front end from moving at all. I dont know much about the stock bolts on the rocker studs, but I used an acorn nut and a jam nut on mine so I could adjust the force on the joints. They also used nylon washers between anything that wiggled. The HD shock, however, may be a bit more stiff than you'd like. The shocks are 12" long and can be replaced with a newer HD shock with minimal effort. Late model K7/K8/F2/F3 front sprocket cover removal: Shorten your forks: DO NOT CUT THE SPRINGS!
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