Crupi "Quad Disc" Wheelset - 20 x 1-1/8 Inch (451) - Axles 10/10mm
- Weight : 1.28kg / 2.82lbs
- Packaging Unit: 1 Set
- Product ID (PID): 45211
- Product safety
Weight
Source: BMX Glossary
Printed: 10/29/2026
The Crupi "Quad Disc" Wheelset - 20 x 1-1/8 Inch (451) - Axles 10/10mm is a disc brake wheelset for very young riders who race. It has 28 spokes and Rhythm Section aluminum doublewall rims in 20 x 1-1/8 inch (451mm), with 10mm axles front and rear. It is meant for disc brakes only.
The rear runs the Crupi Quad Disc Mini cassette hub: 150 ratchet teeth engage every 2.4 degrees, with three pawls. A 16T aluminum cog is included, any Shimano standard cog fits. The rotor mounts with six bolts (ISO 6-bolt) and is not included. The pair weighs 1275g according to US Pro.
Facts: Crupi "Quad Disc" Wheelset - 20 x 1-1/8 Inch (451) - Axles 10/10mm
- Wheel Size: 20"
- Rim: Rhythm Section 20 x 1-1/8"
- Material: 6061-T6 aluminum, doublewall
- Brake Type: Disc
- Holes: 28H - ETRTO ⌀: 451mm (20")
- Hub: Crupi Quad Mini (front), Crupi Quad Disc Mini Cassette (rear)
- Bearing: Sealed Bearings (SB)
- Driver: Shimano standard (cassette freehub), aluminum freehub body
- Engagement: 150 points / 3 pawls (24°)
- Disc mount: ISO 6-bolt - Axles: 10mm (front), 10mm (rear), chromoly
- Holes: 28H
- Spokes: steel, 15G, alloy nipples
- Weight: 1275g (pair)
- Content: 1 wheel set (front wheel + rear wheel)
- 16T aluminum cog
- rotor not included


