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RB OE Caliper BBK (355x21 vs. OE 335x20mm) for M3 Rear (Base Model Calipers)
RB OE Caliper BBK (355x21 vs. OE 335x20mm) for M3 Rear (Base Model Calipers)
This product photo is for reference only.
 
Our Price: $1,475.00
Sale Price: $1,400.00
You save $75.00!

Availability: Usually Ships in 6 to 8 Weeks
Product Code: 2608-K
Qty:

Description
 
This big rotor kit is exclusively developed by RB for upgrading your rear rotors to 355mm (from OE 335mm) with an extended bracket for an instant BBK (retaining OE calipers and pads)

Rotor Material: Racing Formula Alloyed Gray Iron & Heat treated

Surface: EDP Coating w/cross cut grinding on friction surface

This rotor kit includes:
2 ea - RB 2pc rotors
2 ea - Caliper bracket/adaptors (TS12-BA) and hardware
1set - RB XT910 street performance pad

Please Note:
This set up is for M3 base model Gray OE calipers.


Replacement rotor ring: D404-05

Weight Comparison:


Rear
Size (mm) Wt (lbs)
OE 1pc (Base/Perf.)
335x20
16.8/14.2
RB 2pc
355x21 14.3
Saving/Rotor

2.5/-


Surface: EDP Coating w/cross cut grinding on friction surface
Material :

  1. Alloyed iron formula adds strength and heat resistance. Heat treating further improves rotor performance for a more uniform and stabilized microstructure.

Design:

  1. The cooling vanes are of a convergent nozzle design, which increases airflow and turbulence and makes discs cooler. ( Illustration #1)

  2. Exclusive full floating design with 10.9 grade alloyed hardware. Hardware is DACRO coated and crimp locking. DACRO is highly corrosion resistant and provides a film for easier movement between the hat and rotor ring as disc expands and contracts and the crimp design provides positive engagement without rattling or torque loss at temperature.

Related Links:
Two-Piece Feature Comparison Chart


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