We've paid close attention to the Crumbworks Chunk since we visited the shop back in March 2023 and caught a glimpse of Keita's prototype! It's an incredible frame that tastefully mixes old and new standards, has elegant swooping curved tubes, and rides just right.
Specs
Handmade in Japan. Made by RIZINWORKS.
Tubing: TANGE 4130 Cro-mo mixed up!
Head Tube Diameter 1" Threaded
Bottom Bracket: 68mm English (BSA) Threaded
Fork Spacing: 12x100mm
Rear Spacing: 12x142mm
Seatpost Diameter: 27.2mm (Stealth dropper post routing)
Disc Brake Type: Flat mount for 160mm rotors
Maximum Tire Size: 27.5x2.8
Chainring Clearance: 42t single
3 sets bottle cage mounts
Rear rack and mudguard mounts
Full-length cable housing guides for derailleurs and brakes
Triple cage mounts fork
Stealth Dynamo routing
Kickstand plate
Geometry
S (47cm)
M (50cm)
L (54cm)
Top Tube (Effective)
590mm
620mm
660mm
Seat Tube (C-T)
470mm
500mm
540mm
Head Tube Angle
69°
69°
69°
Seat Tube Angle
71°
71°
71°
Head Tube Length
185mm
200mm
230mm
Chainstay Length
470mm
470mm
470mm
BB Drop
50mm
50mm
50mm
Fork Rake
50mm
50mm
50mm
Fork Axle To Crown
410mm
410mm
410mm
Weight
3.05 Kg
3.25Kg
3.45 Kg
Bassi frames ship for flat rates in Canada, the US, and Europe. Please contact us for a quote in other regions.
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Crumbworks Chunk Frame and Fork
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