StopTech 80.130.6702 ST60 caliper upgrade for StopTech 355mm ST40 BBK

Already have a 355mmm BBK but need a bit more? The StopTech ST-60 6-piston caliper upgrade is the perfect mod for those seeking to get some more performance out of their BBK. Also an excellent good choice for those looking at rebuilding their ST-40 calipers.

StopTech ST-60 - 6 Piston Calipers

StopTech's ST-60 calipers are manufactured from fully forged aluminum for optimal strength and light weight. Forging also produces a beautifully finished, nonporous caliper. StopTech does all finish machining (such as piston bores sized correctly for the application), assembly and test in California. Calipers that are cast without being squeeze forged can have major issues with porosity which can even cause calipers to leak. Dust boots are standard on StopTech calipers to keep the pistons clear of contamination and extend the service life of the calipers. Competitors calipers designed without dust boots require rebuilding every two years.

 Advantages of StopTech's ST-60 - 6 Piston Caliper:

• Pistons sized to match brake kit to vehicle application
• 100% leak down and pressure tested to 2,500 PSI
• Differential piston sizes minimize pad taper
• Uses standard FMSI D1247 brake pad
• Weight: 8.9lb (4.04 kg) unloaded
• Silicone Dust boots are standard
• Made of forged aluminum alloy

StopTech's Patented Caliper Bridge

Using finite element analysis (FEA) modeling software, StopTech has designed a bolt-in bridge strong enough to stop distortion without sacrificing cooling through the top of the caliper. The squeeze forged StopTech caliper has the least flex of any tested aftermarket or OE caliper. The air channel in the bridge helps air flow through the retainer, resulting in better cooling.

The chart below shows the results of testing 25 leading caliper models by the major caliper companies. Each caliper was subjected to the same pressures and deflection was measured with a dial caliper. StopTech calipers were the stiffest caliper of the major brands tested.

 Advantages of Stiffer Calipers:

• Better performance with no vibration or noise
• No radial pad taper
• Better pedal feel

Wheel fitment

Download the StopTech BBK template for this application