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FZR rotor, R6 caliper

Started by SDDaytona, August 17, 2025, 01:29:34 AM

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SDDaytona

Had a productive day in the shop and got the FZR rotor and R6 caliper mounted. Happy to report than an RD350 rotor center section spaced the new rotor perfect. Left a little weight on the table by not adding some lightening holes to the caliper mount but i don't have a mill to get too fancy with my design

m in sc


85RZwade

I post waayyy too much

Kawtriplefreak


Simmons1


SoCal250

Very nice! :clap: Looks great.
How does it feel with the 14mm OE master on there? That ratio is only about 16.64
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)

SDDaytona

Quote from: SoCal250 on August 18, 2025, 12:43:28 PMVery nice! :clap: Looks great.
How does it feel with the 14mm OE master on there? That ratio is only about 16.64

I don't really have much to compare to TBH. My other current ride is even older with shittier brakes lol. That said, the stopping power is greatly increased without being overly sensitive. I'm very happy with the upgrade

Brad-Man

What master cylinder are you using?
Toys don't make the man - Man makes the toys.
1974 RD350
1975 RD350/400 project
1985 BMW K100RS

SDDaytona


m in sc

im pretty sure the f master is smaller than the others since it had a single piston caliper. I might be wrong, but i thought it was 14mm. (9/16)