Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
Wheels Manufacturing SOLO-SPEED Cog - 21t, Fits SOLO-SPLINE and SOLO-XD kits, RedWheels Mfg. SOLO XD and SOLO SPLINE Single Speed cogs are constructed with high end 7075 aluminum and designed with narrow to wide alternating tooth pattern allowing for superior chain retention. Cogs are optimized for use with Wheels Mfg. SOLO XD XD XDR and SOLO SPLINE Single Speed Conversion kit carrier systems only. Crafted with high end 7075 aluminum for light weight and extreme durability Cogs are optimized for use with Wheels Mfg. SOLO XD XD XDR
Wheels Mfg. SOLO-XD and SOLO-SPLINE Single Speed cogs are constructed with high-end 7075 aluminum and designed with narrow to wide alternating tooth pattern allowing for superior chain retention. Cogs are optimized for use with Wheels Mfg. SOLO-XD XD/XDR and SOLO-SPLINE Single Speed Conversion kit carrier systems only.- Crafted with high-end 7075 aluminum for light weight and extreme durability
- Cogs are optimized for use with Wheels Mfg. SOLO-XD XD/XDR and SOLO-SPLINE Single Speed Conversion kit carrier system only
- Designed with narrow wide alternating tooth pattern allowing for superior chain retention
- Fits 9, 10 and 11-speed chains
- Compatible with 12-speed SRAM Eagle, KMC, SRAM Road and SRAM T-Type Transmission flattop chains
- Will not work with 13-speed Campagnolo or 12-speed Shimano HG+ chains
Product Specifics
- Tooth Count: 21
- Cassette Body Type: Shimano Micro Spline
- Cassette Body Type: SRAM XD
- Cassette Body Type: SRAM XDR
- Material: Aluminum
- Defined Color: Red
Today's Stock Status
1 Available to ship in 2-4 Business Days
UPC: 810124712907
EAN: Not available
Manufacturer Part Number: SOLO-COG-21T-2
FW0375
185258-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
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Product Reviews
★★★★★ 5
Great, fast and light!
Capacity: 16GB Unified Memory | 512GB SSD Storage, Color: Midnight, Set: Without AppleCare+
All apple products I consider them good, so with this mac I think it’s worth the investment, its lightweight and with all the features that I was looking for . MacOs includes all the necessary tools out of the box
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Reviewed in the United States on May 15, 2026
★★★★★ 5
MacBook Air M5 Faster, Cooler, Better in Every Way
Capacity: 16GB Unified Memory | 512GB SSD Storage, Color: Sky Blue, Set: Without AppleCare+
That jump from M1 MBA to an M5 MBA really does feel like going from a 2-door sedan to a full-on rocket ship. The looks are pretty much the same but it is the upgrade you actually feel in day-to-day use. It's faster, better battery, stays cool and quiet. Also, you get a brighter screen, better speakers, sharper webcam, faster Wi-Fi and longer support.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Great laptop
Capacity: 16GB Unified Memory | 512GB SSD Storage, Color: Silver, Set: Without AppleCare+
This is the best purchase for my son as he is entering middle school. They spend a lot of time on computers, and this product works exceptionally well.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Portable, reliable, efficient.
Capacity: 16GB Unified Memory | 512GB SSD Storage, Color: Silver, Set: Without AppleCare+
Gifted this to a sibling who is a student. I cannot imagine more suitable than this laptop. Occasionally used for video editing as well. Perfectly combines power with portability. And most importantly it is reliable, always ready for anything when and wherever you need it. Beautifully crafted, amazing feel of materials, gorgeous screen, and affordable price for this level of quality. Simply a pleasure to use for every kind of task and entertainment. MacOS includes all the necessary tools out of the box, UI is snappy, and although the screen is 60Hz but due to smaller screen size UI feels I would say like 90Hz, i.e. smooth enough, and I am a MacBook Pro user with pro motion display. No fan, no noise, yet it doesn’t get warm with daily tasks. Easy to recommend.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Great laptop
Capacity: 16GB Unified Memory | 512GB SSD Storage, Color: Midnight, Set: Without AppleCare+
Small, great display. Runs fast.
Love the color.
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Reviewed in the United States on May 21, 2026