How to modify triple clamp to accept Harley bars or risers. I installed 1.5" T-bars.

Very nicely done...kudos!! Love the look. One question since you seem to have though this through pretty thoroughly; isn't there a top triple tree clamp out there that could be substituted for the triumph one? I'm definitely guessing here, but seems that there should already be one out there that would fit our fork tubes and already have the 3 1/2" spacing. No?
 

I don't think so. The triple trees are highly engineered to mate your front end to the frame. I wouldn't swap one.. Now, I HAVE done, and this is where I met my friend Leon, completely swapped front ends... Here's how that works in my own example just for description and "Bobber" riders do this all the time.

  1. Take old bike, in my case a 1987 Honda Super Magna (which has a CRAP front end)
  2. Take front end from some other way-cool bike, in my case a 1999 ZX9R and this includes forks, wheel, rotors, brakes and triple tree.
  3. Have your handy machinist (Leon) yank the steering stem out of the old triple tree and the stem out of the new-cool front end and put the old stem in the new-cool triple tree and... VOILA!

You just put a ZX9R front end on a 1987 Honda Super Magna... what to worry about: The rake angle and fork length.. ZX9r has shorter forks, the Magna has more rake meaning the front end gets lower, changing geometry.. put extension on the forks, live with it, or do like I did and completely re-engineer and weld up the rear end from the same ZX9R (chain drive ) and put it (changing from twin shocks to a mono-shock) into the Super Magna.. I also installed a VF1000R motor in there (87 hp to 120+ hp and lose the shaft drive losses)... not done yet, but it is all assembled.. lots of engineering here and welding, not for the faint of heart. If I can find a pic of this baby, I'll post it.



John
 
I don't think so. The triple trees are highly engineered to mate your front end to the frame. ..

It's not that bad.
I have Suzuki GSXR forks on my Daytona. I designed a new Top clamp to mate to the OEM Suzuki Triples, with the combo of dimensions from the two different requirements.
i.e. the fork specific requirements - fork spacing and stem hole dimensionally suited to the GSXR bottom triple ( I wanted the GSXR geometry) and the key-switch and instrument mounts from the Triumph.
Drew it up in CAD and had a friend knock it out on his CNC.





I subsequently added a 'pocket' to take the OEM Triumph Emblem in the final part.







 
OK SORRY I dont see why I would want to do this to my ROCKET as I like the stock setup better
 
Guessing it has something to do with availability of styles in certain sizes and price.

You accomplished this differently, but the end product is pretty similar to how I ended up doing my Thunders, I like, the 2" bars look great!
I dont like either cant stand the big 2 inch crash bars I dont like that look at all but to each his own
 
AND SORRY again I dont like 1.5 inch handlebars either OH WELL not for me
 
Wow... three negative posts in a row...... You should ride a Harley.. you'd fit in.
NO you should you trying to turn your bike into a HARLEY IM not being negative I truly dont know why I would want to do those mods its not my taste thats all IF its good for you then have a ball it doesnt bother me I just dont understand why other than you like the look and thats OK as long as your happy
 
AND SORRY again I dont like 1.5 inch handlebars either OH WELL not for me

I hate the thunder bars too, the twin vertical tubes from top yoke do not flow right.
Saying that I do have 2" crash bars, & had 1 1/2" bars with 1" mounting tube made with harley style switchgear/levers.
All part of making our bikes our own
 
I too find the the Rocket bars are a little too far forward and low on my 09 so I have been looking for options. This is a very interesting approach