Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel
Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel

Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2″ x 1/8″ Chain 7075 Aluminum Chainwheel

For single speed bike only
Fit for 144 BCD Fixed Gear/Track Bike
Support 1/2*1/8 chain
Tooth: 42T to 70T

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Stone 144BCD Round Chainring for Fixed Gear / Track Bike

For single speed bike only.

Not compatible with 7/8/9/10/11/12 speed bikes.

Compatibility

  • Suitable for 144BCD 5-bolt cranksets.
  • Designed for fixed gear, track bike, fixie and single speed bicycles.
  • Compatible with 1/2″ x 1/8″ single speed chains.
  • Not compatible with 7-12 speed drivetrains.
  • Not compatible with road bike multi-speed systems.
  • Not compatible with MTB drivetrains.
  • Please confirm your crank BCD is 144BCD before purchase.

Specifications

  • Brand: Stone
  • Type: Round Chainring
  • Material: 7075-T651 aluminum alloy
  • Material Hardness: HB150
  • BCD: 144BCD
  • Bolt Pattern: 5 Bolt
  • Speed: Single Speed
  • Chain Compatibility: 1/2″ x 1/8″
  • Thickness: 4mm
  • Manufacturing: CNC machined
  • CNC Precision: 0.03mm
  • Finish: Anodized
  • Color: Black
  • Teeth Options: 42T-70T

Available Size

Max outer diameter and weight are for reference only. Product weight may vary slightly due to production batch or product upgrade.

42T: 176mm, 63.5g

43T: 180mm, 69.5g

44T: 184mm, 94g

45T: 188mm, 84g

46T: 192mm, 91.5g

47T: 196mm, 96g

48T: 200mm, 113.5g

49T: 204mm, 117g

50T: 208mm, 122.5g

51T: 212.5mm, 128g

52T: 216.5mm, 134.5g

53T: 220.5mm, 139.5g

54T: 225mm, 145.5g

55T: 228.5mm, 149.5g

56T: 232.5mm, 156.5g

57T: 236.5mm, 164.5g

58T: 241mm, 170g

59T: 245mm, 176g

60T: 249mm, 183g

61T: 252.7mm, 217g

62T: 257mm, 225g

63T: 261mm, 245g

64T: 265mm, 254g

65T: 269mm, 261.5g

66T: 273mm, 271g

67T: 277mm, 280.5g

68T: 281mm, 288g

69T: 285mm, 279.5g

70T: 289mm, 306g

Features

  • 144BCD Standard – fits most 5-bolt track / fixed gear cranksets
  • Wide Size Range: 42T to 70T – ideal for street, velodrome, training, and custom gearing
  • Single Speed Specific Tooth Profile – optimized for 1/2″ x 1/8″ chains
  • 7075-T651 Aerospace Aluminum – high strength and lightweight
  • Precision CNC Machined – excellent roundness and smooth chain engagement
  • 4mm Thickness Design – strong, stable, and resistant to flex
  • Black Anodized Finish – durable surface with premium appearance
  • Includes Steel Bolts – ready to install

Important Compatibility Notes

  • For single speed bike only. Not compatible with 7/8/9/10/11/12 speed bikes.
  • Please confirm your crankset is 144BCD 5-bolt standard before purchase.
  • Please confirm your chain size is 1/2″ x 1/8″.

Package Includes

  • 1 x Chainring
  • 5 x Steel Bolts

Warm Tip

Please confirm your crankset uses 144BCD 5-bolt standard before ordering.

This chainring is made for single speed / fixed gear use only.

Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel Stone 144BCD Round Chainring 42T-70T for Fixed Gear Track Bike Fixie Single Speed Bicycle 5-Bolt 1/2" x 1/8" Chain 7075 Aluminum Chainwheel

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