Chainring Collection

Chain Rings for Bicycle Cranks For Sale at Standard Bike Repair near Boulder High School

The slideshow shows pictures of chain rings in stock. If you would like to change the gearing ratio of your bike, come to SBR near the Goss/Grove district. Used chainrings are $16. New ones are in the $25 to $55 range. Installation of chainring onto crank is $42 per hour or $20 for Crank Overhaul and Chain Ring Swap.

BMX Chain Rings:

1. 45 Tooth, Made in the USA, Odyssey, Single Spindle for SS only, Heavy Duty, 1sp Crank
2. 44T Poverty Econoline, 5-Bolt or Single Spindle, Black and Silver

74mm BCD 5-Bolt

1. 20T Shimano, Silver
2. 24T Shimano, Silver
3. 28T Silver
4. 30T Truvativ, Silver
5. 30T Black

94mm 5 Bolt

1. 32T Black, Rails,
2. 44T Origin 8 Pro Pulsion, New: $30

104mm BCD, 4-Bolt

1. 32T Shimano SG-X, Small Ring for MTB
2. 33T Black or Silve, No Rails
3. 42T Shimano BCD, HyperDrive SG-X X42, Black
4. 44T Truvativ Trushift AL-7075-T6, Black, Gearing Rails, For Big Ring on MTB
5. 44T Shimano Mega Drive Train, Silver
6. 44T Shimano Mega Drive Train, Black

110mm Bolt Circle Diameter (BCD) 5-Bolt

1. 34T Copper, Single Speed, No rails
2. 38T Sugino, Single Speed or Gearing for Older Road Bikes, No Gearing Rails
3. 42T Rocket, Silver, Can be Used on 130mm 5-Bolt too, SS or Multi
4. 44T Silver, No brand, Single Speed or Gears, No Rails for Gears
5. 46T Shimano SG, Silver, For Big Ring MTB
6. 52T
7. Sugino, Silver, Big Single Speed Ring for Monster Fixie or Vintage Roadie
8. 52T Steel, Silver, No roller coaster rails for changing chain, Heavy

130mm BCD, 5 Bolt

1. 42T Rocket, Silver, Can be Used on 130mm 5-Bolt too, SS or Multi
2. 45T Silver, Multi-Speed Rails, For 42 to 52 MTB Crank System
3. 46T Blue Chain Ring, Lasco, Only for Single Speeds/Fixed gear
4. 50T Vuelta, USA, Silver, SS or Multi, No Gear Rails
5. 52T Black, No Brand, For Roadie with Rails
6. 52T Silver, Shimano, No Rails, <52> 1K
7. 53T Shimano, Chrome Silver, No Rails
8. 54T Real, Silver, Rails for Gears

135mm BCD

1. 48T QBP Enagagement Ring, Silver, USA, Multi or Single Speed Compatible

Rare or One-off Chain Rings in the Giant Box of Used and New Crank Parts

1. 46T Motorcycle Chainring; Massive Silver Heavy 5 bolt, 110mm BCD Motorcycle Chain Ring; for Special Projects and Bicycles with motors.
2. 40T 3 Bolt, Unknown BCD, Silver, Rare, Unknown BCD
3. 52T 6-Bolt, Chrome Silver, Steel, Heavy, Probably for an Old Skool Road Bike
4. 22T 64mm BCD 4 Bolt Shimano