FIT: Profile cassette hubs only
CHAIN FIT: 3/32" recommended (1/8" can be used as well)
MATERIAL: Machined and heat treated 4140 aircraft alloy steel with a zinc coating for smoother chain engagement and togher-longer lasting finish.
J&R Helpful Hint: Cogs and sprockets wear over time. We recommend replacement every 6 months due to chain wear.