Upshotknothole Posted June 23 Posted June 23 Posting this here because they were on a 95 750W when I got them. Any idea what pads these are? Also what should I do about these rotors? Was thinking run the current pads till the rotors are nice and clean and get new pads. Logic being the rotors on my truck rust constantly when it sits and then clean up under normal use. Quote
Upshotknothole Posted June 23 Author Posted June 23 The rotors are 330mm. I tried contacting PM, but their website throws an error every time I try and contact them. And I found the pads. FA216/3HH, they're mostly used on PM calipers and other cruisers. No idea if PM ever sold a kit for GSXRs or someone set these up themselves. Still curious to see how they perform. Quote
Dezza Posted June 23 Posted June 23 (edited) 3 hours ago, Upshotknothole said: The rotors are 330mm. I tried contacting PM, but their website throws an error every time I try and contact them. And I found the pads. FA216/3HH, they're mostly used on PM calipers and other cruisers. No idea if PM ever sold a kit for GSXRs or someone set these up themselves. Still curious to see how they perform. Wierd - don't they have phones? I'd guess the compound for brake pads for an HD mega behemoth would differ to those required for something like a much lighter sprots machine like a GSXR. Do they supply pads of different compounds? Edited June 23 by Dezza Quote
DAZ Posted June 23 Posted June 23 Looking at the caliper to the adapter plate I'd say it wasn't factory made , as if it was specific to a model of fork type I would expect the calipers to bolt directly to the forks ,the top caliper mount is scalloped to miss something, also the gap twixt the calipers and plate is uneven, my nose says home brewed , but still nice calipers if you want non standard blingy bits Quote
Upshotknothole Posted June 23 Author Posted June 23 9 hours ago, Dezza said: Wierd - don't they have phones? I'd guess the compound for brake pads for an HD mega behemoth would differ to those required for something like a much lighter sprots machine like a GSXR. Do they supply pads of different compounds? It's the weekend, no one's there. The compounds are all the same, these pads are standard EBC HH pads. I was mainly asking for the pad part number, as I could only make out the last of it and when I tried cleaning the back, it took the writing off as well. Some creative googling pulled it up. 8 hours ago, DAZ said: Looking at the caliper to the adapter plate I'd say it wasn't factory made , as if it was specific to a model of fork type I would expect the calipers to bolt directly to the forks ,the top caliper mount is scalloped to miss something, also the gap twixt the calipers and plate is uneven, my nose says home brewed , but still nice calipers if you want non standard blingy bits They're mainly an aftermarket cruiser supplier now, but I think they did make sports bikes parts back in the 80s and 90s. Similar to how Vance & Hines used to make tons of sports bike stuff and now mainly sticks to drag racing and cruiser parts. Doubt much ever made it across the pond, same as we rarely see the nice brakes from Europe outside of Brembo. Definitely repurposed calipers from probably a harley, but the rotors were made for GSXR wheels. The biggest problem is the complete lack of any part numbers on anything. The rotors are completely blank and the calipers only have USA hand stamped into each half. Are there any other 330mm rotors that fit W wheels? I'm hoping to bring these rotors back, but if I can't, or when they wear out, stock sized rotors would require new adapters to be made. 1 Quote
bunk Posted June 24 Posted June 24 6 hours ago, Upshotknothole said: Similar to how Vance & Hines used to make tons of sports bike stuff I have V&H case savers on my 750. That said i remember plenty of magazines with decked out gxsr's on pm wheels and brakes from back in the day. For awhile it was the goto recipe. To me it makes sense they used a pad from a existing bike. 1 Quote
Upshotknothole Posted June 24 Author Posted June 24 4 minutes ago, bunk said: I have V&H case savers on my 750. That said i remember plenty of magazines with decked out gxsr's on pm wheels and brakes from back in the day. For awhile it was the goto recipe. To me it makes sense they used a pad from a existing bike. Yeah, a buddy of mine has a set of PM GSXR wheels, and I've always wanted his wheels and he's always wanted my brakes. Here's a set of the wheels. Those wheels are currently on Eblag, and they seem to not be too hard to find. I can't find any info on the brakes though. I wish more of the old V&H stuff was still around, looks way more period correct to me than running new aftermarket stuff. 2 Quote
Upshotknothole Posted June 25 Author Posted June 25 Got it all mocked up tonight. I haven't seen these rotors on a bike in almost 2 years, forgot how big they are. Really curious to see how they feel once I get everything bled. 5 Quote
Dezza Posted June 26 Posted June 26 What's it like getting the calipers on? I ask as I had a Ducati with 330mm discs and it took a certain knack to do this as there was very little space between the disc and wheel rim. The pistons on each caliper had to be pushed right back when new pads went in. Quote
Upshotknothole Posted June 26 Author Posted June 26 6 hours ago, Dezza said: What's it like getting the calipers on? I ask as I had a Ducati with 330mm discs and it took a certain knack to do this as there was very little space between the disc and wheel rim. The pistons on each caliper had to be pushed right back when new pads went in. Actually pretty easy to get on. The calipers are a little smaller than the stock ones and the adapter plate doesn't get in the way at all. Quote
Upshotknothole Posted July 9 Author Posted July 9 This them all mounted up. Other than the oil cooled wheel, all W and PM parts. They bled up real nicely, have stayed firm at the lever, and whenever I get the rest of the bike back together, I’ll post up how they work. The tiny little ¼” bleed nipples are dumb and required a trip to the store to get a wrench for them. 6 Quote
Upshotknothole Posted July 16 Author Posted July 16 Took them out yesterday to test them, and new forks, and new jetting. Was a little nervous going down the hill from my house at first, alternated between accelerating to test the jetting and braking to test the forks and start cleaning up the rotors. I think I did less than 10 miles yesterday, so hardly enough to really get any real heat into the pads and rotors. They did feel good and was able to focus my attention more on the other things on the bike. Once it cools off a little I'll take it back out again and see what it can do. You can already see a nice difference in the rotors now that the surface rust is getting removed. 2 Quote
Upshotknothole Posted July 26 Author Posted July 26 Quick update, put about 100 miles of spirited riding on these brakes yesterday. Rotors continue to clean up and the feel is good. Got a rebuild kit for the M/C waiting to go on, and I think as soon as I get the last of the oxidation off the rotors, I'll throw some new pads in and bleed them again. Definitely worth the $300 I paid for the 95 750W donor bike these came off of. 5 Quote
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