The Brembo big brake kit is a rear GTR upgrade pairing a four-piston billet caliper with a 345x28mm two-piece slotted Type1 rotor in nickel, specified for select Spyder applications excluding PCCB. The assembly is described as a rear BBK with billet calipers and a Type1 slotted rotor pattern, finished in nickel to match the original fitment references included in the source data.
Brembo 16 98ster Spyder (Excl PCCB) Rr GTR BBK 4Pis Billet 345x28 2pc Rtr Slot Type1-Nickel