Home > Brand > Stone chainring Brand > Stone 144 BCD Round Chainring for Fixie Fixed Gear Track Bike 42t to 70t 48 50 52 54 55 56 57 58 59 60 63 64 66 68 Single Speed Chainwheel 144bcd

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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

Name: 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 C
Brand: DJC Bikes - DJC Components
Price: 51.84 USD
Availability: InStock
Rating: 5 (17 reviews)

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Color:

42T

43T

44T

45T

46T

47T

48T

49T

50T

51T

52T

53T

54T

55T

56T

57T

58T

59T

60T

61T

62T

63T

64T

65T

66T

67T

68T

69T

70T

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Specifications
Warranty FAQ

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.

All Taxes & Duties Included • Fast Delivery (8–12 Days) • No Hidden Fees • 6-Month Warranty

1 How long is the warranty?
We offer 6 months limited warranty to all products because of the quality defects. We offer lifetime payable repair service after the warranty.

2 Do need to pay tax duty when package arrive my country?
You no need to pay tax when package arrive your country, most countries in the world no need pay.
USA aslo no need tax duty and tariff, our carrier will cover it.

Brazil, Chile, Columbia clients need pay import duty when package arrive your country.

3 Can I return the goods if I am not like it?
Yes you can apply return and refund when you receive the product within 7 days. But as return shipping fee is relatively high when send back to China, so we suggest you consider and carefully before purchase.

Or you can send message to us and discuss technical issues to clarify if the products is what you need, and then pay after you sure your order is correct.

4 How long is the shipping time?
To most countries 7-15days can arrive your address. Pay extra 20USD if want ship by Fedex DHL UPS.

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