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Mid-Drive Chainring Replacement
Size Guide
| XS XS | S S | M M | L L | XL XL | XXL XXL | |
|---|---|---|---|---|---|---|
| Chest | 78 31.3 | 84 33.7 | 90 36.1 | 96 38.6 | 102 41 | 108 43.4 |
| Waist | 65 26.1 | 70 28.1 | 75 30.1 | 80 32.1 | 86 34.5 | 92 36.9 |
| Seat | 83 33.3 | 89 35.7 | 95 38.2 | 101 40.6 | 107 43 | 113 45.4 |
| Inseam | 76.5 23.3 | 78 23.9 | 79.5 24.5 | 81 25.1 | 82.5 25.7 | 84 33.7 |
| Arm Length | 58 23.3 | 59.5 23.9 | 61 24.5 | 62.5 25.1 | 64 25.7 | 65.5 26.3 |
| Shoulder to Shoulder | 36 14.5 | 38 15.2 | 40 16.1 | 42 16.9 | 44 17.7 | 46 18.5 |
Measurement Guide
Measure the circumference of your chest, waist, and hips for jerseys, jackets, and vests. Measure the circumference of your waist and length of your inseam for shorts, pants, and bibs.
Replacement Chainring for Select QuietKat Models
Please see Specs section for compatibility information as chainring compatibility depends on motor type
Use this to replace your old or damaged chainring. The chainring on an electric bike is the front sprocket that engages with the bike's chain and transfers power from the rider or the electric motor to the rear wheel, determining the bike's speed and efficiency.
BBSHD Compatibility: For use with Bafang BBSHD mid-drive motor; 2023 Apex Pro, Apex Sport, Apex, Warrior
Ultra Compatibility: For use with Bafang Ultra mid-drive motor; Ibex, Jeep, Rubicon, Ridgerunner
Please note, the spider for the Ultra motor chainring is sold separately here and requires special tools to replace. It is best to visit a local bike shop for this replacement.
For hub-drive bike models, see the Hub-Drive Crankset Replacement.
Includes: Chainring (BBSHD comes with spider attached, Ultra does not)
Material: Steel
Teeth: 39T (BBSHD) or 40T (Ultra)
BBSHD Compatibility: For use with Bafang BBSHD mid-drive motor; 2023 Apex Pro, Apex Sport, Apex, Warrior
Ultra Compatibility: For use with Bafang Ultra mid-drive motor; Ibex, Jeep, Rubicon, Ridgerunner
Features
Use this to replace your old or damaged chainring. The chainring on an electric bike is the front sprocket that engages with the bike's chain and transfers power from the rider or the electric motor to the rear wheel, determining the bike's speed and efficiency.
BBSHD Compatibility: For use with Bafang BBSHD mid-drive motor; 2023 Apex Pro, Apex Sport, Apex, Warrior
Ultra Compatibility: For use with Bafang Ultra mid-drive motor; Ibex, Jeep, Rubicon, Ridgerunner
Please note, the spider for the Ultra motor chainring is sold separately here and requires special tools to replace. It is best to visit a local bike shop for this replacement.
For hub-drive bike models, see the Hub-Drive Crankset Replacement.
Specs
Includes: Chainring (BBSHD comes with spider attached, Ultra does not)
Material: Steel
Teeth: 39T (BBSHD) or 40T (Ultra)
BBSHD Compatibility: For use with Bafang BBSHD mid-drive motor; 2023 Apex Pro, Apex Sport, Apex, Warrior
Ultra Compatibility: For use with Bafang Ultra mid-drive motor; Ibex, Jeep, Rubicon, Ridgerunner
