ZR-1 Street/Track brake pad/rotor upgrade - ZR-1 Net Registry Forums

Hib Halverson · 02-25-2017

Street/Track "Axxis ULT" brake pads along with a set of gray-coated and slotted rotors to fit any ZR1.

The pads are made by brake parts mfg. Centric, the Axxis ULT is a semi-metallic/ceramic/Kevlar composite pad. It's designed for a high-performance street/autocross/HPDC road course duty cycle. Centric claims the ULT pads have one of the highest coefficients of friction of any brake pad available for street use on the market. Anything higher could be considered a race-only pad. ULTs are not a full ceramic but a semi-met reinforced ceramic material offering good braking power with relatively low pedal effort. They perform well at a wide range of temperatures making them especially good for hi-po street and autoX. This is not a low dust or a long life pad but for performance, they're a very good choice.

PN 109-04120, front.
PN 109-04130, rear.

Rotors are slightly-used ZR-1 take offs each with about 0.010-in. wear. Little or no thickness variation.

Fronts are, left, 1.097-in. thick, and, right, 1.102-in. thick.

GM specs....
Front, new maximum thickness: 1.110-in.
Front, minimium refinished thickness: 1.059-in.
Front, discard thickness: 1.039-in.

Rears are both 0.782-0.783-in. thick.

GM specs....
Rear, new maximum thickness: 0.795-in.
Rear, minimium refinished thickness: 0.744-in.
Rear, discard thickness: 0.724-in.

SOLD

02-25-2017	#1
Hib Halverson Join Date: Jun 2005 Location: CenCoast California Posts: 899	ZR-1 Street/Track brake pad/rotor upgrade Street/Track "Axxis ULT" brake pads along with a set of gray-coated and slotted rotors to fit any ZR1. The pads are made by brake parts mfg. Centric, the Axxis ULT is a semi-metallic/ceramic/Kevlar composite pad. It's designed for a high-performance street/autocross/HPDC road course duty cycle. Centric claims the ULT pads have one of the highest coefficients of friction of any brake pad available for street use on the market. Anything higher could be considered a race-only pad. ULTs are not a full ceramic but a semi-met reinforced ceramic material offering good braking power with relatively low pedal effort. They perform well at a wide range of temperatures making them especially good for hi-po street and autoX. This is not a low dust or a long life pad but for performance, they're a very good choice. PN 109-04120, front. PN 109-04130, rear. Rotors are slightly-used ZR-1 take offs each with about 0.010-in. wear. Little or no thickness variation. Fronts are, left, 1.097-in. thick, and, right, 1.102-in. thick. GM specs.... Front, new maximum thickness: 1.110-in. Front, minimium refinished thickness: 1.059-in. Front, discard thickness: 1.039-in. Rears are both 0.782-0.783-in. thick. GM specs.... Rear, new maximum thickness: 0.795-in. Rear, minimium refinished thickness: 0.744-in. Rear, discard thickness: 0.724-in. SOLD __________________ Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878 Last edited by Hib Halverson; 05-23-2017 at 08:33 PM.