I’ve never had an issue with a Pro Gear chain. Yes, there are two versions.
Whats worth noting, is many “ chain failures” are not the chain at all. It’s a gear issue. Wearing gears, and especially, eccentricity. The chain is often blamed for another actual problem. The actual gear manufactures study this stuff quite extensively.


RIP Monte Smith

Your work is a reflection of yourself, autograph it with quality.

WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.