I suspect a few of you may also need Front Caliper Rebuild Kit including pistons at a better price than the new-old-stock Yamaha pistons alone.
I needed front caliper pistons for Project Karma. Mine were pretty badly pitted - so much so that whomever rebuilt them last simply didn't install the second thinner outer seal in either bore! I discovered the pitting, of course, only after disassembling my caliper (and already ordering rebuild kits).
I already owned Brake Crafter's seals-only rebuild kits for the front and rear calipers. My rear caliper rebuild went really smoothly. When I realized I needed pistons for the front caliper, I reached out to Brake Crafters to see what they could supply. They offered a rear caliper 316L Stainless Pistons and Seals rebuild kit for the Seca II, but not for the front.
Within less than an hour of contacting them, a helpful sales rep named Lindsey and I had exchanged several emails. They didn't currently offer the piston sizes needed for the front caliper - there are 2x pistons in the stock front caliper, one larger in diameter than the other.
Instead of turning me away, they ordered a Yamaha caliper and had their machinists get it into their work flow to reproduce the pistons. Lindsey set good expectations regarding turn around time - about a month - and they delivered. It is very refreshing to find a company and a sales rep so willing to help a customer get what they need.
They now offer a front caliper rebuild kit for the Seca II with 316L Stainless Pisons. Their rebuild kits are complete, including seals and rubber bits, silicone-based assembly lube, a new bleeder nipple, and new copper washers for the banjo bolt.
The pistons were ready on Friday. By Monday they were in my mailbox. That was yesterday.
I rebuilt the front caliper this morning. The pistons fit perfectly.
Finished!
