Mutant Buell Donor Bike Article

[enembee]

Originally posted by mutantbuell
awesome list of useful info

I know you're busy as hell, but I'm wondering... now that the Bobber can use the XB engines, how do they stack up to what you have on your list here?

Thanks in advance.

[mutantbuell]

Thanks for the question,

Basically there are only two derivatives of the XB engine, a 984cc and a 1203cc. The 12 is basically the old motor configuration as far as bore and stroke with heads even better than the old Thunderstorms, and .551 lift cams with 10:1 compression. These motors put about 92-93 horsepower to the rear wheel bone stock and can rev to about 7000 safely.
The 9 is the same bore as the 12 (3.500") but has a shorter stroke flywheel (3.125" as opposed to the longer 3.813"). Makes for a quicker revving package that's safe to spin to 7500, but the drop in displacement puts them at around 75 horse without any mods. Same cams and heads on these motors, just a different crank.
All XB's are fuel injected from the factory, but converting them over is the same as the X1 process I listed out above (carb, intake manifold, rotor cup, ignition module and you're done).
All XB's have got the inverted tube Showa front end with the cool perimeter braking system and Nissen caliper.
That's really about the long and short of it. The XB line doesn't vary nearly as much as the old tube frames did, so outside of motor size, it's pretty much a toss up. Plenty of these babies in salvage to be had cheap though, so let me know when you need a frame and get to chop'n!

Later,
Justin @ Two-Bit Choppers

[mutantbuell]

A couple of pics of RE's XB Mutant roller from Sturgis,

From the right



and the left



And speak of the devil.... I picked up a not so gently used (read wrecked) 2003 XB9R this last week that we'll be building for the winter/spring show circuit. I've got a couple of customer bikes in line ahead of it, but I should be around to it by mid-October. I'll be looking to post a bunch of pics as the build moves along. RE hasn't even completed one yet, so it will be a learning experience all the way around.

I'll keep you posted,
Justin @ Two-Bit Choppers

[PACO]

Justin,

Hopefully by then I'll have all the bugs worked out for my air ride seat system & RE will replace the ones I supply them with now with it. It's a bit more compy than the sprung ones.

They have a few of my air shock pan/systems but I've been working on a air bag system that'll be right @ $500.00 ish including the bag, front & rear mounts + the solo seat pan ready to cover.

Young choppers should be getting the first 1 when they arrive back from the vegas bikefest.

I've been working on this since the beginning of summer & will have pics of the completed 1 I'm installing on a 55 FL pan bobber real soon!

Stay tuned...............

PACO

PACO

[popasickboy]

Is this a rubbermounted frame??? Arent the XB,s rubbermounted??? Whats the price of this frame pictured---Its a looker for sure--Im selling a 1999 1200C with a clean title minus the motor----If anyones interested---Or just the frame with the title-----

[ironmind]

hey Paco, do you make an air ride that I can put on my original style mutant frame?

[mutantbuell]

Sore ass Iron? Kidding, I know your back's gotta be killing you on that thing. Plus the insurance company probably has a P.I. following you taking pictures.
"Look, he rides a rigid frame motorcycle, how can he really be injured?"

Later,
Justin @ Two-Bit Choppers

[ironmind]

that is my worst fear Justin.

[mutantbuell]

That is the worst bro. My sister in law got harpooned after she got hurt in an accident by a drunk driver. His insurance company got pictures of her riding a horse at a guest ranch (read sitting on the back of a walking horse for an hour). Got the judge to drop a bunch of the long term damages they were trying to claim, saying the back injury she sustained obviously wasn't perminent or that severe. Goddamn lawyers. Hope it all works out for you.

Justin @ T.B.C.

[phillie]

O.K. I'm bringing this thread back from the dead. I haven't seen anything on a 95 S2 Thunderbolt being used as a donor bike. I have one with a built motor that I'd like to use. Can I use the forks from it also if it can be used?

[Onthisone]

I hope I got the big boy engine the heads are powder coated black and it says its a 2001 x1 switched to carb.