Crupi "Quad Disc" Wheelset - 20 x 1.75 Inch (406) - Axles 20/10mm
- Weight : 1.73kg / 3.81lbs
- Packaging Unit: 1 Set
- Product ID (PID): 45213
- Product safety
Weight
Source: BMX Glossary
Printed: 10/29/2026
The Crupi "Quad Disc" Wheelset - 20 x 1.75 Inch (406) - Axles 20/10mm is a 36 spoke disc brake wheelset built on Rhythm Section Pro rims in 20 x 1.75 inch. The front runs a Crupi Quad Pro hub for a 20mm thru axle. It comes with extra spacers so it fits chromoly and carbon forks designed for 20mm hubs.
The rear runs the Quad Pro Disc cassette hub with a 10mm axle: 150 ratchet teeth engage every 2.4 degrees, with four pawls. Four spacers let you set the cog for a straight chain line, a 16T chromoly cog is included, and any Shimano standard cog fits. The rotor needs a 6-bolt mount and is not included. The pair weighs 1729g according to US Pro.
Facts: Crupi "Quad Disc" Wheelset - 20 x 1.75 Inch (406) - Axles 20/10mm
- Wheel Size: 20"
- Rim: Rhythm Section Pro 20 x 1.75"
- Material: 6061-T6 aluminum, doublewall
- Brake Type: Disc
- Holes: 36H - ETRTO ⌀: 406mm (20")
- Hub: Crupi Quad Pro 20mm (front), Crupi Quad Pro Disc Cassette (rear)
- Bearing: Sealed Bearings (SB)
- Driver: Shimano standard (cassette freehub), chromoly freehub body
- Engagement: 150 points / 4 pawls (24°)
- Disc mount: 6-bolt - Axles: 20mm (front), 10mm (rear), chromoly
- Holes: 36H
- Spokes: steel, 14G, alloy nipples
- Weight: 1729g (pair)
- Content: 1 wheel set (front wheel + rear wheel)
- 16T chromoly cog
- 4 cog spacers
- extra spacers for 20mm forks
- rotor not included


