Bolts don’t fit for Stronglight ring on Athena 11s
5 min read
Asked by: Jim Jacobson
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 chain ring bolts?
One aspect that is often overlooked is that many chainrings have recessed bolt holes, the depth of the recess should also be taken into consideration. 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.
How tight should chain ring bolts be?
A Shimano “General Operations” manual states the tightening torque for road chainwheels is 12-14 N-m. For mountain bike chainwheels it’s upped to 14-16 N-m for large and middle ring and 16-17 N-m for the smallest ring of a triple.
Are Campagnolo chainrings interchangeable?
No, you will need a set that is Campag compatible. Some Campagnolo cranksets use special chain ring bolt that bolt through the ring and into the crank, at least behind the arm.
Should you grease chain ring bolts?
Yes, grease the chainring bolts. You could try a very very weak thread lock, but grease is enough.
How do you fit chainring bolts?
Quote from video: And then start tightening them properly using your torque tool. Rather. Than going around the chain ring tighten opposing bolts a little at a time. And once they feel tight.
What does BCD mean chainring?
Bolt Circle Diameter
Bolt Circle Diameter (BCD) is the diameter of the circle that goes through the center of all of the bolts on your chainring. On bicycle chainrings, this dimension is usually measured in millimeters.
How do you tighten chainring bolts?
Quote from video: Sometimes you can torque these chainring bolts by just holding the crank. And then pushing and turning the torque wrench but other times when you go to try to torque these bolts the whole bolt turns.
Which way do chainring bolts go?
With rings aligned, place each nut into the bolt hole. Securing the nut with chainring nut wrench or hex key, thread the bolt into the nut in a clockwise direction, screwing in just until the bolt feels resistance and the rings are held in place.
Should I 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.
What is the torque for SRAM chainring bolts?
Written on the back of the chain ring you will find the torque spec for the chain ring bolts; 8-9 N*m or 71-80 in-lbs.
What is a crank bolt?
Crank bolts, as the name suggests, are used to secure the crank to the axle (spindle) of the bottom bracket(BB). While they are another of those parts that may go largely unnoticed by most riders – sometimes they are even covered by a dust cap – they may become loose and worn over time and require replacement.
Can you put grease on bolts?
Mechanics often use grease on bolt threads to protect the threads inside a component while also preventing bolts from seizing to the component. While both of these things are important, you have to keep in mind that a greased bolt takes less torque to apply a given amount of clamping force.
Do you grease shackle bolts?
Expert Reply: Yes, I would recommend keeping the bolts of the # AP233 lubricated. An easy way to do this is to use wet bolts like part # 126B2 which have a zerk fitting that allows for easy application of grease to them.
Should I grease crank bolts?
With or without lubricant, in use, cranks will make metal-to-metal contact with the spindle, causing fretting erosion of the steel spindle for all but the lightest riders. Lubricating the spindle for assembly assures a predictable press fit for a given torque.
Which way do chainring bolts go?
With rings aligned, place each nut into the bolt hole. Securing the nut with chainring nut wrench or hex key, thread the bolt into the nut in a clockwise direction, screwing in just until the bolt feels resistance and the rings are held in place.
How do you tighten chainring bolts?
Quote from video: Sometimes you can torque these chainring bolts by just holding the crank. And then pushing and turning the torque wrench but other times when you go to try to torque these bolts the whole bolt turns.
Do you grease crank bolts?
You need to grease the bolts, and the inside of the crank arm and put it back together.
What is a crank bolt?
Crank bolts, as the name suggests, are used to secure the crank to the axle (spindle) of the bottom bracket(BB). While they are another of those parts that may go largely unnoticed by most riders – sometimes they are even covered by a dust cap – they may become loose and worn over time and require replacement.
What size are crank bolts?
Available are M8 Bike Crank Bolt – 8mm Thread Diameter, 8mm Allen Key Head, Chrome Coated.
Why does my crank bolt keeps coming loose?
If you’ve been repeatedly riding with a loose crank arm it could be that it’s now damaged. You could try tightening with lots of torque, grease on the square taper and threadlocker (e.g. blue Loctite, but in a pinch any kind of glue works) on the threads.