X1 Carbon Fiber Extreme XB wheel and Suspension conversion
I haven’t posted in a while but I am still around and wanted to share our lastest build of one of our (www.engineeredvelocity.com) shop test Mules. This is a limited edition X1 Carbon Fiber Extreme #250 of 250. Before the purest come out for attack, nothing will be done to this bike that can’t be reversed with a weekends worth of work. All the parts will be plastic wrapped and put away for the purest later on in the life of this bike. For now we are going to mod and enjoy this bike like Erik would have wanted us to. I’ll post a few pics and if you have any questions about anything along the way just ask. We are proving that this can be done in a weekend if you sourced all your parts and bought the conversion kit. We are going to be using our conversion kit, 1125r front forks, 1125CR trees, XB front and rear wheels, EBR front rotor, EBR front caliper, and the list goes on and on.
Rear wheel is done. The rear caliper bracket and anti-rattle clip have to be modified. The inboard part of the rotor channel has to be opened up and both sides of the axle area will need to be machined down. This always seems to be the most complicated hurdle for people and it’s really not all that bad. We are working on a solution for this and this step will soon be eliminated as well. But for now you have to machine the stocker.
Super slick windscreen! I think I mentioned I rode an M-2 with this conversion for about 3500 miles and I really, really, liked it. A huge upgrade to suspension, brakes and (IMO) looks too.
The PM wheels were cool when Boyd was alive, but time marches on
Why the CR triples? Just for key location? Or are they dimensionally different than the R triples in some way?
These forks and triples were sourced though the Ronin 47 project. They were the take offs from those bikes. Although the 1125’s are demisionally different yes. But I’m not sure if it was made up in the frame or the trees. Compared to previous conversions I have done, the 1125 rake and trail seems to be perfect for these tube frames. My S1 was done with XB stuff and it sacrificed turning radius.
Sorry, the question was why use 1125CR triples instead of 1125R triples. Sounds like just what happened to be sourced. Coolio.
FYI, the XB (non Ss) and 1125 rake and trail are identical. (3.3" and 21*). The headstock angle at the frames is the same as well. I guess it's possible the fork legs on the 1125's are farther forward in relation to the steering stem? That would explain the turning radius, as long as it's not a cable/wiring issue like the all the non-tuber bikes have.
Moving on to the front of the bike. We have simplified the front with a simple steering stem swap. Press the factory XB/1125CR/R stem out and press our (www.engineeredvelocity.com) stem in and this will allow you to bolt the front end on without any machine work such as counter boring a set of XB/1125 trees. The only thing we had to modify is the CR upper triple tree, key tumbler area, due to the X1 having mount blocks welded to the steering neck.