Are chain ring bolts universal?
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.
What size are chainring bolts?
Single bolts are generally between 3.5 – 5.0mm Long. Double bolts are generally between 5.0 – 6.5mm long. Triple bolts are generally 7.0mm or longer. Triple bolts are normally only used to hold the two outer chainrings as the inner will be smaller and screwed directly to the crank.
Do Shimano chainrings come with bolts?
The thing is that the bolts needed for the BB were a larger diameter than the ones with crank, so those are the ones I used. But every time I have bought a Shimano BB, they come with bolts, and every high end Shimano crankset also tends to come with bolts.
Should you grease chain ring bolts?
Be sure to apply a little grease to all surfaces of the chainring bolts (both halves and the threads). That’ll ensure you get them tight and make it easier to get them off the next time you do this job. Also, it help prevent any annoying clicking when pedaling.
Do all chainrings fit all cranks?
Largely speaking, yes. As long as your attempting to replace them with a chainring(s) designed to work with your chainset. Your cranks will have a specific bolt layout or fitment spec so you can’t just fit a BMX chainring to your triathlon bike.
What size are Shimano chainring bolts?
Outer diameter of male bolt across threads is 7.7mm, outer diameter of female sleeve/nut is 9.6mm. Diameter of both across the pan head is 11.6mm. These are the measurements for a Shimano 5700 compact crank 50/34 stock chainrings, for future reference.
Should I Grease chain ring bolts?
Can I change my chain ring?
A well-maintained chainring will last longer than its chain and cassette counterparts, often several times over, but inevitably, the time may come for you to replace it. The good news is: It’s easy to replace and the signs that your chainring is past its prime are easy to spot.
Can you reuse chainring bolts?
Chainring bolts made of Steel or Titanium will typically last longer and can be re-used more times than aluminum bolts. If the bolts look good and function smoothly, there is usually no reason to replace them. When reusing bolts, clean them well so there is no grit or other debris that may hinder proper tightening.
Do you need Loctite on chainring bolts?
It won’t harm anything. But it’s not needed. When properly tightened, chainring bolts don’t come loose.