Brompton Round Chainring BCD 130mm 5 Bolts Silver Wheels this crankset is designed to

this crankset is designed to offer both style and durability

Brompton Ultralight Titanium Square Taper Bottom Bracket 119mm is an after market accessory that will help reduce the weight of the total bike

Durable Build: Weather-resistant and impact-proof

The plastic contact surface is designed to protect the seat tube from scratches and wear

bicycle chains normally bounce around and hit your bike's frame

Brompton Round Chainring BCD 130mm 5 Bolts Silver Wheels this crankset is designed toBrompton Round Chainring BCD 130mm 5 Bolts Silver Brompton Round Chainring BCD 130mm 5 Bolts Silver, replacement chainring part for your Brompton Bike. Easily fix chipped or worn out tooths. Compatibility: Brompton bike, 9, 10, 11 speedsProduct: ChainwheelMaterial: Aluminum Alloy 7075 T651BCD: 130mmColor: SilverWeight: 131g 58TThickness: 4mmPackage contains: 1 piece chainring + 5 pieces steel boltsChainwheel Teeth: 38 60T