Massive is proud to introduce its new Rally kit with 11-3/4" x 1-1/4" (300mm x 32mm) rotors and 6 pot SL6R Wilwood calipers. The kit will fit Kosei K1 15" x 8" (no spacer required - direct bolt-on) and perhaps other 15" race wheels. It will obviously also fit 16" wheels with ample room between the rotor and the dish.
Complete kit is priced under $1500usd including everything, but brake pads (it a very personal choice). Hats are only available anodized silver, and steel radial mounts are zinc plated for protection. All fasteners and brakelines included.
Ideal for those of you who have several sets of 15" Kosei K1s or are racing in Classic groups where 15" wheels are required, or for rally. But remember that wheels require exceptional clearance behind the spokes. We use full thickness 20mm brake pads, stiff thick calipers and wide rotors.
Rotors are off-the-shelf Wilwood parts and easily available. There are 4 choices of rotors to fit this application. From $50 to $100 each. We supply the $70 Heavy-Duty rotor. For auto-crossing, you might elect to buy a lighter rotor that will reach proper heat sooner. It takes about 10 minutes to change a rotor. NO balancing required as the hats have a specially machined hub to center the discs in any situation (just like a wheel hub).
Hawks, Porterfield, Performance Friction, Carbotech, Ferrodo, all have their compounds available for the 7420 pad shape. Some AP Racing calipers use that same pad shape. It is 20mm thick, so it is a tru race pad, not the usual 16mm thickness.
I just tested the fit with a 15" x 8" Kosei K1 this morning. No spacer required. The caliper's perimeter is about 2mm away from the insie perimeter of the barrel, in a section that is extremely strong. So, even a bent wheel will work. But outer balancing weight most be relocated.
ABS ring is not affected. But you can forget about the pad wear sensor.
Thanks.
Complete kit is priced under $1500usd including everything, but brake pads (it a very personal choice). Hats are only available anodized silver, and steel radial mounts are zinc plated for protection. All fasteners and brakelines included.
Ideal for those of you who have several sets of 15" Kosei K1s or are racing in Classic groups where 15" wheels are required, or for rally. But remember that wheels require exceptional clearance behind the spokes. We use full thickness 20mm brake pads, stiff thick calipers and wide rotors.
Rotors are off-the-shelf Wilwood parts and easily available. There are 4 choices of rotors to fit this application. From $50 to $100 each. We supply the $70 Heavy-Duty rotor. For auto-crossing, you might elect to buy a lighter rotor that will reach proper heat sooner. It takes about 10 minutes to change a rotor. NO balancing required as the hats have a specially machined hub to center the discs in any situation (just like a wheel hub).
Hawks, Porterfield, Performance Friction, Carbotech, Ferrodo, all have their compounds available for the 7420 pad shape. Some AP Racing calipers use that same pad shape. It is 20mm thick, so it is a tru race pad, not the usual 16mm thickness.
I just tested the fit with a 15" x 8" Kosei K1 this morning. No spacer required. The caliper's perimeter is about 2mm away from the insie perimeter of the barrel, in a section that is extremely strong. So, even a bent wheel will work. But outer balancing weight most be relocated.
ABS ring is not affected. But you can forget about the pad wear sensor.
Thanks.
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