chooee Double/Single Chainring Bolts CNC M8 Chain Ring Bolts Set M8

Fits double and triple chainring applications Bolts M8x8.5mm, Nuts M8x6.5mm diameter:10mm. Chainring bolts made of T25 Steel Easy to install and removal,For double chain rings. There are 5 pinion bolts in the pack. 2. Made of SZ 7075 aluminum alloy/ T25 Steel 3. Has hexagonal heads both on the screw and on the nut for easy installation. Each chainring bolt – the number will vary depending on the chainset design, but is usually four or five – consists of two parts, a female-threaded ‘outer’ part and a matching male ‘inner’. The outer nut has a standard external diameter of 10mm so theoretically the bolts can be used to fit any chainset. However, bolts are available in different lengths for different applications, e.g. for single or double chainrings (a double-chainring bolt being necessarily longer than a single-ring one) Which chainring bolt is right for you? chainring bolts work by clamping the chainring to the spider and are generally marked ‘single’, ‘double’ or ‘inner’ in respect of how many/which chainrings they are designed to be used with. As above, single is the shorter, double the longer and some inner-ring bolts just have the male part only. However if they are too long (e.g. when a chainring is thinner than standard or the bolt is just the wrong length) they tighten against themselves rather than securely clamping the chainring or bashguard. In this instance you can file some material from the face of each bolt to shorten it, or you may need to try a size down.

Order Processing: After your payment is authorized and verified, we will start processing your order and this process can take from 1 to 2 business days, so please be patient with us. If we are unable to process your order due to inaccurate or incomplete payment or incorrect address information, your order processing may be delayed.

Carrier: UPS/FedEx/USPS. Delivery Timescale: More than 90% of orders arrive in 10 business days after despatch.

FREE RETURNS on all orders!
The following conditions must be met:

1. Items must be returned within 30 days after the purchase date.
2. Items must be unworn, undamaged and in original packaging.