Fit a DRZ400SM 310mm front disc and caliper adapter for road braking

16 replies to this topic
  • Northern Pride

Posted April 18, 2016 - 05:02 PM


Has anyone done this mod? I can find the disc easily but where can i buy the caliper adapter? Is this mod worth it?

  • stevethe

Posted April 18, 2016 - 05:13 PM


If your trying to fit it on a Yamaha your best opportunity for not having grief is get one for a Yamaha.

  • DeepPurplishBlue

Posted April 18, 2016 - 05:18 PM


I have heard it is actually a pretty straight-forward mod as the disc fits without
much drama but sourcing the caliper adapter is the difficult part.

I had found a few sources last time I looked into it but don't remember where I saw
them. I think there were a few on Ebay, maybe try there...

  • Northern Pride

Posted April 18, 2016 - 09:57 PM


Has anyone done the tusk oversized kit? The rotor is a 270

  • DeepPurplishBlue

Posted April 18, 2016 - 10:03 PM


I have the Tusk 270mm disc on two of my WRs... easy to install and seems to
have made an improvement in braking. If nothing else it looks better than
the stock Yamaha disc.

For the price I suppose it is a decent upgrade.

  • Pancho_Jsy

Posted April 18, 2016 - 11:49 PM


Sorry to hijack but are there any 310/320mm disk kits actually available for the WR?

  • ricknaz

Posted April 19, 2016 - 03:48 AM


I bought this setup for mine in australia but it shouldn't be too hard to find the same parts in your part of the world.



  • RockerYZWR

Posted April 19, 2016 - 04:03 AM


There are all sorts of SM 320mm brake kits out there for pretty much anything that can be converted to SM. The route I took was a Motomaster floating front that I found for $109 and an EBC caliper bracket for $64.
I also use the Tusk 270mm set up for dirt and it is way better than the stock front brake.

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  • stevethe

Posted April 19, 2016 - 04:05 AM


I have the 310mm Barrenger set up with the six pot caliper set up for supermoto.

There are many 320mm simple disc and caliper relocater brackets made for supermoto.

Yamaha GYTR also makes a 270mm for dirt.

Edited by stevethe, April 19, 2016 - 04:07 AM.

  • Northern Pride

Posted April 19, 2016 - 04:10 AM


People that have the 270mm, can stoppies happen with this kit? Strong enough?

  • stevethe

Posted April 19, 2016 - 04:39 AM


People that have the 270mm, can stoppies happen with this kit? Strong enough?

Hardly but almost maybe? Definitely not like a supermoto set up. With the Barringer it's a one finger.

  • toten

Posted April 19, 2016 - 06:02 AM


Both of my supermotos have Braking 320mm rotors, Braking 4pot calipers, Brembo radial masters (one 16x18, the other 15RCS... I think, I'd have to double check) and they work great. Then again, it's probably a grand in brakes on each bike if you buy new. 


Rather than adapting DRZ stuff, I'd go with a kit intended to fit a WR. They aren't that expensive and should bolt up.

  • Pancho_Jsy

Posted April 21, 2016 - 12:49 AM


Ordered the kit from our EBC supplier yesterday. Here's a link to the right product in the US for y'all


Apologies again for hijacking :naughty:

  • Northern Pride

Posted April 21, 2016 - 02:09 AM


Let us know what you think and if you can do stoppies with it

  • toten

Posted April 21, 2016 - 07:06 AM


I've ridden a few supermotos that use relocated stock caliper and have never had trouble lifting the rear. I've even been able to do it with a stock size rotor. Obviously they don't have the feel or heat capacity that the 320/4pot I'm running now does, though. 

  • Kx250FRiDeR651

Posted April 27, 2016 - 09:03 PM


320 kits all day available. Motostrano has a few different options from lower cost warp 9, EBC, up to high end kits...

With the 320 and caliper relocation bracket, it's a major pain in the ass because the caliper is almost touching the rim, so when you need to take the wheel off you need to get creative. I've only been able to take mine off by unbolting the rotor everytime..some say take the inside pad out.

7D55E2F1-30B7-47DD-A44A-DA8B81561AF4.jpg this is an EBC 320 supermoto contour kit on my 15' Wr. It's about $170

Edited by Kx250FRiDeR651, April 27, 2016 - 09:04 PM.

  • toten

Posted April 28, 2016 - 09:24 AM


You've had to unbolt the rotor? Wow. I just pull the caliper on mine, and I would've expected a 4pot to be bulkier. Just about every sportbike you have to pull calipers on some I'm used to it and didn't think twice. 


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