Triumphrat

Easy13

At the risk of incurring the wrath of the experts, I just made the Triumph wheel and carrier spacers the same length as the F3 units, reversed the cushdrive rubbers (as the wheel itself is reversed), and mounted it up. My uncalibrated eyeball says sprockets line up well, the rotor fits perfectly into the caliper, and 5000+ miles later, I'm still falling in love with it everytime I saddle up. If the wheel is offcenter a little, it sure isn't affecting handling, as I run some fairly serious twisties almost everytime I ride it.

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"Cognito Ergo Wrenchum"

Actionabe

Pieman, I know its a long shot but do you happen to have any of the measurements from the spacers that you used for your f3 wheel swap? I was planning on using the string alignment method to figure out the correct spacers for the rear but if the front wheel is off center that is not really a viable option, kind of scratching my head right now as how to go about this.

beemerrich

Eric,

Mo' badder each time I see her. The 2 into 1 is a tidy addition. Glad you have more than one curve these days to push the envelope on...

I'm with you on this whole deal. My caliper lines up fine with the rotor and the chain is pretty close...gonna toss some washers under the sprocket to move it to the right & get the alignment correct and ride the thing. Perhaps Rossi or Spies would feel the difference right to left in corners, but my novice arse can't tell any preference for the bike to tip in...hands off the bars & the bike runs true...

Of course my prior motorcycles have always been 'classics', not sport bikes, so anything that doesn't hinge in the middle in a corner is a big improvement...

Cheers,

--Rich

beemerrich

I'm not sure how off center you are using all honda bits up front...the wheel is centered on a F3 and you aren't changing that part. If you shift the wheel significantly to one side or the other, then the calipers no longer line up with the rotors.

What might be slightly different is the triple tree spread. I just measured my F3 triple tree I have here at work and it is 59.395mm between the fork tubes. I'll measure the triumph one when I get home tonight, but whatever difference there is would get divided in 1/2 and that amount added to the spacer on each side. Or not if the calipers are within their tolerance for movement. However much difference there is it can't be much since my left caliper alignment is fine and there isn't that much lateral movement available in the caliper...

Regards,

--Rich

Actionabe

thats true, thanks for taking the time to get the measurements. I doubt I will feel any small offset, just want to make sure I get eveything right since the riding season is so short here I cant afford to lose any time with problems once it warms up..

beemerrich

Action...

The stock triumph triple trees have the tubes set 59mm apart, so there's maybe a 0.4mm difference. This would mean a 0.20 mm reduction in each spacer to maintain exact centering of the wheel.

FWIW, I did not notice any spreading of the forks to get the wheel to fit...my guess is that the wheel assembly is narrow enough that the extra distance is taken up by the axle pulling through the necessary amount. The right side spacer would then be the governing distance since the axle slides through from left to right.

And being from Michigan, I can relate with wanting to maximize riding time during the warmer months...

Cheers,

--Rich

Actionabe

Thanks again for the measurements! Not that much of a difference....The forks probably flex more than that.. Probably just go with the stock spacers and see how it shakes out for now..Was doing some work tonight and looks like the rear axle bearing spacer will have to be made a little longer, just kind of rattled around in there with the bearings in, probably about 2mm too short.. Cant wait to get the front bearings and tires in so I can start fitting stuff up and see how it goes together.. I am throwing on a Speedmaster master cylinder to make sure I get the right flow to the calipers. Took a few minutes to figure out the dual throttle cables...

Siskiyou

Don't know what size master the Speedmaster has but the F3 master cylinder
is marked as a 1/2" diameter piston.

beemerrich

The F3 is for 7/8" bars...the speedmaster is for 1" bars. Both have 1/2" bores.

I'm going with a 14mm M/C since I'm pushing dual 3-pot calipers...

Cheers,

--Rich

PieMan

That'll do it!

I'm using the factory CBR600 calipers with the factory Bonnie 11mm m/c and they pull up pretty rapid.

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Mike (UK)

04 Bonnie Black Special

http://www.triumphtwinpower.com