I figured I would do a write up on the speed merchant radial caliper bracket install because I couldn't find anything on the net on it. I also hope you guys don't mind me putting it in here because this seems to be the thread that people would be installing it and probably looking at the most. I am a numbers guy and when I look for a tutorial or installation thread I like numbers so here is what I found to be needed to make this work on my bike. Mine is an 06 dyna with 11.8 rotors and a oem cast front wheel


I needed spacers and didn't want a bunch of washers in there to get the caliper spaced on the rotor and to get the right pad travel on the rotor. I had some 150 thousandths spacers machine from the bracket to the leg. That worked perfect for me but yours may vary. Now for the caliper to the mount my spacers were approximately 0.078 or 5/64. The inner diameter of the spacers should be about 3/8 to accommodate the 3/8 bolts. The outer diameter should be about one inch. The leg ones can be smaller outer diameter but the caliper to bracket ones need to be an inch





When I got the caliper bracket I got the one in black and as always with powder coated parts you are probably going to need to chase or clean up the threads. For the bracket to leg mounts it takes a 3/8 by 16 tap or thread chaser. For the caliper to mount it takes a 3/8 by 24. That should help you on bolt sizes too but yours may vary depending on your wheel and spacer combo. Hope this helps

 

So have you had a chance to try out these new calipers? I was looking at these very same adapters on a bike at the Buffalo Chip display on the 5th and like the idea of GSXR600 calipers as an upgrade over the stock HD calipers as I am sure they are the weak link in the braking on Dynas.

 

very nice!

 

Honestly the newer brakes on 06-up dynas aren't that bad compared to the evo ones. But I did try this out about two hours ago and I will say that the are definately smoother and require less braking force on the handle. Pads are cheaper to replace for the gsxr caliper and I would say that braking difference is less. This is not comparable to putting a dual disc setup on but it is I would say worth the 150 bucks.

 

very good idea thanks

 

Looks good. I've been looking at these as well.

Debating if I'm going this route or the PM/Jaybrake 6-pistons.....

 

Can you post additional pictures? Wanna see both sides.

Will this work with the fat bob's 11.5" rotor? And did you use the stock M/C?

 

Are you sure you have 11.5 inch rotors? And why wouldn't it work. All it does it move the placement of the caliper. The caliper itself is about the same size

First pic is mine


Here is a dual disc setup (not mine)

 

Looks awesome. That is one of the mods on my short list when the bike arrives this winter.

 

Is your hub the same width as a stock street bob hub?