What size chainring bolts do I need?

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.

What thread are chainring bolts?

75mm thread. As a rule, a set of chainring bolts designated for use with a single chainring will do the job nicely. Trouble arises when the chainring is thinner than it might be and the bolts tighten against themselves instead of clamping the ring to the spider.

Why does my bottom bracket creak?

Most surprisingly, what often sounds like a bottom bracket creak is actually something else. Most of the time, the true cause is a loose chainring bolt—tighten them up and that’ll quiet most creaks. Remove each bolt with an 8mm hex wrench or 14mm socket wrench, then grease and retighten them.

Should you use Loctite on chainring bolts?

Chainring bolts don’t need much torque and they rarely come loose (i’m inclined to say never). Loctite will just make removal more difficult, and generous coat of grease will prevent corrosion just fine in practice.

Are Shimano Dura Ace 9000 chainrings any good?

Shimano Dura-Ace 9000 Chainring. The fantastic engineering of Dura-Ace finds its way into every nook and cranny of the groupset, and that most certainly applies to the Shimano Dura-Ace 9000 chainrings. Made of precision-machined alloys that are carbide-reinforced for strength and longevity, the rings shift smoothly, look great, and last forever.

What is the da 9000 chainring made of?

This engineering extends into every part of the groupset, including the 9000-series Chainring. The DA 9000 chainring is made from alloy that has been carbide-reinforced. Carbide is often used in drill tips for longevity and durability, and you’ll find those same qualities extend to the chainring.

Can I swap 50/34 chainrings for 53/39 chainrings?

Hi Ronald A, You can swap 50/34 to 53/39 using your existing dura ace 9000 crankset. Stiffest chainrings you can buy, to complete your DA crankset. Can I make a 2X11 system into a 1X11 for with a ST-RS685 for CX?