Crupi 20 x 1-3/8 28H CenterLock Wheelset
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Crupi 20 x 1-3/8 28H CenterLock Wheelset
Description
The Crupi 20 x 1-3/8 28H CenterLock Wheelset is an all-new 2026 race wheelset built for Junior, Expert, and Expert 2X BMX riders who demand the fastest engagement and the most reliable hardware on the track. At the heart of this build is Crupi's Quad CenterLock hubset, featuring 150 ratchet teeth that engage every 2.4 degrees - delivering near-instant power transfer through Crupi's proven Spring and Pawl engagement system. The rear hub comes equipped with 6mm Allen screws, eliminating the need for tensioner spacers and making installation seamless in frames with enclosed dropouts.
Laced with 15G spokes and alloy nipples to Crupi's race-tested 451mm Rhythm Section 28H rims, this wheelset is designed to be both stiff and light at just 3 lbs 3 oz. A standout feature is the CenterLock system's future-ready design: with the optional Crupi Disc Brake Adapter Kit, you can convert the hub for disc brake use, giving this wheelset serious long-term versatility.
Key Features
- Quad CenterLock Hubset: 150 ratchet teeth engaging every 2.4 degrees - Crupi's fastest Spring and Pawl engagement system in BMX.
- 451mm Rhythm Section 28H Rims: Race-tested alloy rims laced with 15G spokes and alloy nipples for a stiff, reliable build.
- Disc Brake Ready: CenterLock hub is compatible with Crupi's Disc Brake Adapter Kit for conversion to disc (adapter sold separately).
- V-Brake & Disc Compatible: Works with both Disc and V-Brake setups for maximum frame compatibility.
- 6mm Allen Rear Hub Screws: Eliminates the need for tensioner spacers; fits cleanly into frames with enclosed dropouts.
- 4 Cog Spacers Included: Fine-tune cog positioning for optimal chain alignment with your specific frame setup.
- Includes 16T Aluminum Cog: Race-ready aluminum cog included; upgrade to 13t, 14t, 15t, 17t, or 18t available at additional cost.
- Weight - 3 lbs 3 oz: Lightweight wheelset with a recommended rider weight limit of 140 lbs.
- Presta Valve Compatible: Wheels require Presta tubes (not included).
- Junior, Expert & Expert 2X Frame Fit: Designed specifically to fit Crupi Junior, Expert, and Expert 2X BMX frames.
Cog Size Options & Which to Choose
- 16T (included, no extra cost): The standard included cog - a versatile all-around choice that suits most Expert and Junior riders on typical BMX tracks.
- 13T (add $10): A smaller cog for a higher top-end gear ratio - ideal for riders who prefer a harder gear and generate a lot of power out of the gate.
- 14T (add $10): A step up from 13T, providing slightly more low-end response while still delivering a punchy gear ratio for aggressive riders.
- 15T (add $10): A middle-ground option between the included 16T and smaller cogs - great for riders dialing in their gearing on specific track layouts.
- 17T (add $10): A slightly easier gear than the stock 16T, offering quicker spin-up and more cadence - well suited for shorter tracks or younger Expert riders.
- 18T (add $10): The easiest gear option, maximizing low-speed acceleration and cadence - best for smaller Junior riders or tracks with tight, technical rhythm sections.
What's Included
- Crupi Quad CenterLock 28H Front & Rear Wheelset (20 x 1-3/8")
- 16T Aluminum Cog
- 4 Cog Spacers
- Rim Tape
Why You'll Love It
Crupi has been building race-proven BMX components for decades, and the 2026 CenterLock Wheelset represents the next evolution of their flagship wheel program. The Quad CenterLock hub's 150-tooth engagement is engineered to give competitive riders the kind of snap-response they need off the gate and out of every turn - without the complexity or weight of a full cassette hub. The included cog spacers and 6mm Allen axle hardware show that Crupi sweated the small details, making this wheel drop straight into your bike cleanly and correctly. With compatibility for both disc and V-brake setups, plus the ability to run a CenterLock ISO converter, this wheelset is ready for whatever direction your program takes. If you're racing BMX at the Junior or Expert level and want a wheel that performs like a factory build right out of the box, this is it.
Product Specifications
View Product Specs
| Wheel Size | 20 x 1-3/8" |
|---|---|
| Hole Count | 28H |
| Rim | 451mm Rhythm Section 28H Alloy Rims |
| Hub | Crupi Quad CenterLock 28H Hubset |
| Engagement | 150 ratchet teeth, engages every 2.4 degrees |
| Engagement System | Spring & Pawl |
| Spokes | 15G with Alloy Nipples |
| Included Cog | 16T Aluminum |
| Brake Compatibility | Disc and V-Brake compatible |
| Tube Valve Type | Presta (tubes required, not included) |
| Weight | 3 lbs 3 oz |
| Recommended Rider Weight Limit | 140 lbs |
| Frame Compatibility | Junior, Expert & Expert 2X frames |
| Rear Axle Hardware | 6mm Allen screws (no tensioner spacers needed) |
| CenterLock ISO Converter | Sold separately |
| Disc Brake Conversion | Compatible with Crupi Disc Brake Adapter Kit (sold separately) |
| Year | 2026 |
FAQ
What frames is this wheelset compatible with?
The Crupi 20 x 1-3/8 28H CenterLock Wheelset is designed to fit Crupi Junior, Expert, and Expert 2X BMX frames. The rear hub features 6mm Allen screws which allow it to fit cleanly into frames with enclosed dropouts without needing tensioner spacers.
Can I use this wheelset with disc brakes?
Yes - the CenterLock hub is designed to be convertible for disc brake use. You will need to add the Crupi Disc Brake Adapter Kit (sold separately) to convert the hub. A CenterLock ISO Converter is also available separately if needed for your setup.
What tubes do these wheels require?
These wheels require Presta valve tubes. Tubes are not included with the wheelset, so make sure to pick up a compatible Presta tube before riding.
Can I change the cog size from the included 16T?
Yes - at checkout you can select a different cog size (13T, 14T, 15T, 17T, or 18T) for an additional $10. The 4 included cog spacers allow you to fine-tune the cog's position on the hub for the best possible chain alignment with your frame.
What is the rider weight limit for this wheelset?
Crupi recommends a maximum rider weight of 140 lbs for this wheelset. This is consistent with the 28H lacing and the lightweight alloy rim construction, which prioritize speed and low weight for competitive Junior and Expert class racers.
What makes the Quad CenterLock hub engagement so fast?
The Quad CenterLock hub uses a Spring and Pawl engagement system with 150 ratchet teeth, which engage every 2.4 degrees. This is one of the fastest engagement rates available in BMX, meaning there is virtually no dead zone when you apply power - critical for explosive gate starts and out-of-corner accelerations in race conditions.
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While many of our products are prepared and shipped out within 48 hours, some of our items are built to order or require custom pieces that could take 2-6 weeks to prepare before shipping! Please contact us at 888-884-2234 for a delivery ETA if you have a strict timeline.
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| Specification name | Specification Value |
|---|---|
| Color pattern | Red, Black, Blue |