A chainring engages the bike chain to drive power to the rear wheel of the bike. Chain rings have a teeth design to that hook into the links of your bike chain. Chain rings are mainly constructed from aluminium, but also come in steel, titanium and carbon fibre.
Chainrings come in single, double or triple configurations. They can be bought in a variety of ‘teeth’ sizes and they also come in two main formats - PCD's (Pitch Circle Diameter) or BCD's (Bolt Circle Diameter), This is the spacing of the bolts that secure the rings to the crank arms.
Chainrings are fitted to the crank arms and come in single, double or triple configuration. Most geared bikes use a 3/32 inch width, whereas 1/8 inch is the popular choice for track bikes and some single speeds due to its increased strength which is needed when riding a fixed wheel. Chainrings are available in a number of formats, these are known as PCD's (Pitch Circle Diameter) or BCD's (Bolt Circle Diameter), this is the spacing of the bolts that secure the rings to the crank arms. Common sizes are 74mm inner ring Shimano MTB, 110mm middle and outer for Shimano MTB, 110mm for most compact chainsets to allow for the smaller ring combo's, 130mm for Standard Shimano Road and 135mm for Standard Campagnolo road chainsets.
Wiggle Ltd. 3 Optima, Northarbour Spur Portsmouth, Hampshire, PO6 3TU, United Kingdom /
Company No: 2667809 /
VAT No: 884 2571 94
There are no facilities for customer collections at this address. Executive Director: Stefan Barden.
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