Bmx Crank Bolt Torque

A torque table for bicycles.

Bmx crank bolt torque. Using a torque wrench will ensure you don t tighten either bolt too much. Bicycle square taper jis crank spindle bolts pair m8 x 1 0 x 15mm chrome. Do it right use this torque guide. If you don t see what you re looking for here there s a good chance we have it there.

Don t over tighten nuts bolts. For example a fully tightened crank bolt can provide over 14 000 newton force 3 000 pounds as it holds the arm in place. This feature is not available right now. 106 132 lb in 12 15 nm with double pinch bolts gradually loosen or tighten alternating between bolts as you do so.

The crank to spindle interface receives quite a lot of stress making larger threads m8 m12 m14 a better choice. Better still is a torque wrench set at around 48nm. 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. Crank bolts fsa m8 bolt 34 39 nm 304 347 in lbs fsa m14 bolt 49 59 nm 434 521 in lbs fsa megaexo crank adjusting cap 0 4 0 7 nm 32 53 in lbs fsa megaexo crank bolt pinch screws 9 8 11 2 nm 87 100 in lbs campagnolo 3 piece 32 38 nm 282 336 in lbs campagnolo ultra torque 42 nm 371 in lbs race face 54 nm 480 in lbs shimano 34 44 nm.

You ll achieve a higher torque a lot easier with a longer handled wrench though. Do it right use this torque guide. The amount of pressure applied by a thread can be substantial in order to hold the joint secure. A 14mm socket used with a socket wrench will get the bolts tight.

Shimano cranks with double pinch bolts on each arm. We have over 2500 old school and retro bmx products as well as hard to find stuff for other types of bikes on our website. Going too far may result in stripping the spindle s thread. Continue tightening until you reach 75 inch pounds 8 5nm.

A shimano general operations manual states the tightening torque for road chainwheels is 12 14 n m. Don t over tighten nuts bolts. This is approximately as tight as you can get the bars using a multi tool. The crank is wedged into a tight connection with the tapered spindle through tightening the crank bolts.

Please try again later. You ll be out of pocket for another bb. The crank bolts screw onto not into as with a cartridge bottom bracket the spindle.