My 1994 Harley Sportster is only fitted with one front disc, and the single piston front caliper is OK, but not great. (actually it's rubbish, almost as bad a CB750) I've wanted to upgrade it ever since I did some engine mods that increased it's top speed from less than 90 MPH stock to around 120 MPH now.
I spotted a used 4 piston PM caliper on Ebay and bought it, but there's not enough clearance between the back of the caliper and the spokes, so that was a waste of $200. I might see if I can't fab up a bracket to put it on the back.
I did another search recently and Ultima are selling a 4 piston front caliper that will supposedly fit my bike. I dropped another $300, so I hope this will work...........
My VTR1000 "Streetfighter" project is coming along nicely, but I'm constantly surprised at how high the seat is. Back in the 1970's a lot of short blokes (and girls) bought CB500/550's over CB750's due to the high seat, well I'm tall, but due to the angle of the seat/rear subframe, the VTR1000 seat must be at least an inch or two taller than a CB750.
I found an adjustable lowering kit that will drop it up to 3 inches lower at the rear, with the added benefit of increasing the rake at the front, for a more stable ride. It was $215 with shipping, but then I realised that I'd also need to buy an adjustable side stand (no centre stand on modern sports bikes) which at 200 bucks plus another 100 for shipping from the US, doubled the price of this particular mod.
Luckily, a seller in the US had the exact adjustable sidestand for $30, plus only $30 postage, a savings of around $200, so I pulled the trigger. Is there a mouse I can buy that's shaped like a gun? I pull the trigger so often on ebay I should change my ID to "Gunslinger".........