Description
– 6061 Aluminum
– Length: 48mm
– Height: 24.5mm
– Made in USA
– 336 g
– 6061 Aluminum
– Length: 48mm
– Height: 24.5mm
– Made in USA
– 336 g
The Thunderbolt+ is our tried and true Thunderbolt cranks, but now it includes a Mid BB and updated graphics!
The Thunderbolt is one of the most technically advanced crank designs on the market. Due to continued advancements in our legendary 41-Thermal® processing and heat-treatment system, fatigue life has been increased by a massive margin.
Available in Rust Proof Black and Chrome.
Our 49er is a traditional looking 4-piece bar that uses multi-butted main tubing, traditional 7/8″ crossbar for strength, larger radius bends for greater durability, welded end caps to reduce flex.
Offset | 30mm |
Dropouts | Invest cast |
Steerer length | 157mm |
Steerer | 1 piece fully CNC heat treated chromo |
Legs | Tapered triple butted heat treated 4130 chromoly |
Tubing | Sanko Japanese Chromo |
Treatment | Full post weld heat treatment for maximum strength to weight ratio |
Bearing race | Integrated |
Top Bolt | 7075-T6 al with M24 thread |
Weight | 2.2lbs |
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