Description

Excellent performance, service life and value for a wide range of applications.

Product Overview

C-TEK(R) rotor & drums establish the foundation of the Centric offering. The C-TEK(R) line serves as an affordable OE replacement. All C-TEK(R) rotors and drums are protected on the shelf by a rust preventative oil.

Features and Benefits

• OE Vane Design & Plate Thickness
• Optimal Surface Finish
• For consistent stopping power
• Low Initial Lateral Run-Out and Disc-Thickness Variation
• For smooth, vibration free stopping
• Precision Balanced
• For vibration free performance

Product Details

ABS Tone Ring Included:	No
Bearings Included:	No
California Proposition 65 Site [basic]:	https://www.p65warnings.ca.gov/
California Proposition 65 Text [cntrc]:	WARNING: Cancer and Reproductive Harm
Center Hole Diameter:	117.200
Description:	C-Tek Standard Brake Rotor
Disc Mounting [cntrc]:	Floating / DIH
Discard Thickness:	1.043
Hat Finish:	Bare
Misc Holes [cntrc]:	0
Mounting Bolt Hole Circle Diameter:	6.500
Nominal Thickness:	1.146
Outside Diameter:	330.000
Overall Height:	85.800
Part Number:	sto121.66055
Product Grade [cntrc]:	Standard
Solid Or Vented Type Rotor:	Vented
Stud/Lug Hole Diameter:	16.500
Stud/Lug Hole Quantity:	8
Surface Type:	Smooth
Vane Style [cntrc]:	Straight
Weight [cntrc] kgs:	10.450
Weight [cntrc] lbs:	23.000

Kit Options

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb	SKU	Kit Title
	sto905.66032	Centric OE Grade Front & Rear Brake Kit (4 Wheel) (2x sto121.66055, 2x sto121.66042, 1x sto301.07840, 1x sto301.07920)
	sto905.66033	Centric OE Grade Front & Rear Brake Kit (4 Wheel) (2x sto121.66055, 2x sto121.66042, 1x sto301.08340, 1x sto301.07840)
	sto905.66039	Centric OE Grade Front & Rear Brake Kit (4 Wheel) (2x sto121.66055, 2x sto121.66042, 1x sto301.07850, 1x sto301.07840)
	sto908.66523	Centric OE Grade Brake Kit (2 Wheel) (2x sto121.66055, 1x sto301.07920)
	sto908.66524	Centric OE Grade Rear Brake Kit (2 Wheel) (2x sto121.66055, 1x sto301.08340)
	sto908.66528	Centric OE Grade Rear Brake Kit (2 Wheel) (2x sto121.66055, 1x sto301.07850)

Data: v4.2 - Upd: 2026-10-13 20:49:47

Features

Specifications

Product Attributes - Brand

Centric Parts

Product Attributes - Manufacturer's Part Number

121.66055

Product Attributes - Part Type

Brake Rotors

Product Attributes - Product Line

Centric C-Tek Standard Brake Rotors

Product Attributes - UPC

805890432555

Product Attributes - Intended for Street Use

Yes

Product Attributes - For Use with Stock Calipers

Yes

Product Attributes - Rotor Construction

Vented

Product Attributes - Rotor Style

Solid surface

Product Attributes - Rotor Outside Diameter (in.)

12.99 in.

Product Attributes - Brake Rotor Bolt Pattern (in.)

8 x 6.50 in.

Product Attributes - Brake Rotor Bolt Pattern (mm)

8 x 165.10mm

Product Attributes - Nominal Thickness (mm)

29.10

Product Attributes - Discard Thickness (mm)

26.50

Product Attributes - Rotor Material

Iron

Product Attributes - Rotor Finish

Natural

Product Attributes - Quantity

Sold individually.

Compatibility