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Old 02-19-2009, 02:36 PM   #71
KOTW is a myth!
notmybikemodelname's Avatar
Joined: Mar 2008
Location: I'm in jail Dad, and I like it here.............
Oddometer: 7,274

I pretty much completed my swap yesterday. All that's left to do is install the caliper which is coming today UPS.

EDIT: Caliper is now on and I took it for a ride in the field next to CSULB............What a difference! Now to get Javier (Trail Tricks) to rework my rear suspension and tune it.

Total costs were $386 which included:

2003 YZ 426/450 shocks with 11.8" of travel
New .48 Racetech Springs (sock is .45)
New Seals, Shims and Dust Covers
New bearings
Excel Rim
Brake Caliper

Had to also buy a new s/s brake line: $50

New total is now $436


Only one custom piece needed. The yoke of the Yamaha is 3/16" shorter than the BMW. So you will need to buy or have made, a 3/16" spacer to go under the spindle nut and on top of the top dust cover.
The top bearing of the Yamaha is identical to the BMW and fits the cup perfectly.
The bottom bearing fits the cup perfectly also. You must use the Yamaha bearing as the Yamaha bottom bearing ID is 30mm, not 28mm like the BMW.
Overall, the Yamaha spindle is about 1/8" bigger (stronger).

Took 2 hours flat.

Two drawbacks:
  1. No steering lock
  2. My friend who paid over $3000 for his TT suspension hates me...nothing some alcohol can't fix....Right Jim?

notmybikemodelname screwed with this post 02-19-2009 at 05:32 PM
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