Torque & Fastener Reference

Torque means how tightly a bolt or nut should be tightened. It is measured in N·m and checked with a torque wrench. Too loose can let parts move; too tight can damage them. If you do not have the right tools or are unsure, ask a qualified repairer.

Important: CEMOTO does not publish a complete public torque table for every fastener. Follow the model manual or contact support for a model-specific value. Do not guess torque values for axles, brakes, stems, suspension or motor mounts.

Handlebar and steering-stem bolt sizes

Choose the bolts for your bike's front and rear wheel sizes:

Front / rear wheel size	Bolt location	Size	Head type	Finish
14-inch front / 12-inch rear (14/12)	Handlebar fixing bolts	M8 x 25 mm	Hex socket (Allen)	Zinc-plated
14-inch front / 12-inch rear (14/12)	Upper triple clamp (top yoke) to steering stem fixing bolt	M10 x 35 mm	Hex socket (Allen)	Black oxide (blackened)
17-inch front / 14-inch rear (17/14)	Handlebar fixing bolts	M8 x 25 mm	Hex socket (Allen)	Zinc-plated
17-inch front / 14-inch rear (17/14)	Upper triple clamp (top yoke) to steering stem fixing bolt	M10 x 45 mm	Hex socket (Allen)	Black oxide (blackened)

Both wheel-size versions use the same M8 x 25 mm zinc-plated handlebar bolts. The bolt that fixes the upper fork clamp to the steering stem is different: M10 x 35 mm for 14/12, and M10 x 45 mm for 17/14.

For example, M8 x 25 mm means an M8 thread and a 25 mm bolt length. These are bolt dimensions, not tightening torque values. For replacement parts or the correct tightening torque, contact CEMOTO Support with your model, wheel sizes and a photo of the bolt location.

A value quoted in an owner manual

Fastener	Published value	Source
Rear rack fixing screw	16 N·m	CEMOTO owner manual

The 16 N·m value is not a general setting for every bike or bolt. Use it only when the manual for your exact bike and rear rack specifies it. If you cannot confirm that match, ask support before tightening.

What you can check

The following are signs to check, not a substitute for the correct tightening value:

Axles must be secure, with no wheel play and correct chain tension
Handlebar and stem bolts must be tight enough that the bar cannot rotate or move
Brake components must be secure and must not shift under load
Pedals must be started by hand and fully tightened with the correct wrench
Plastic and trim fasteners must be secure without cracking or distorting the part

If the required result cannot be confirmed, stop and have the fastener checked by a qualified technician.

For assembly or a qualified repairer

Use the correct model instructions and specified tightening values. If these are unavailable, ask support first.

Clean the threads and remove grit before tightening.
Start every threaded fastener by hand to avoid cross-threading.
Use the correct tool size and keep it fully seated in the fastener.
Where a part uses multiple bolts, bring them up gradually in a cross pattern.
Use threadlocker only where the manual specifies it. Do not apply threadlocker to nylon-insert lock nuts.
Re-check safety-critical fasteners after assembly and after the first ride.

Do not guess these values

If a manual does not provide a numeric value, do not use a generic internet torque table for:

Front or rear axle hardware
Handlebar, stem and clamp bolts
Brake caliper, rotor and lever hardware
Suspension mounts
Motor and controller mounts
Structural frame hardware

Contact Support or use a qualified bike/motorcycle technician if you are unsure.

When to stop riding

Stop riding and inspect the bike if you find:

A loose axle, handlebar, brake, suspension or motor fastener
A missing bolt, nut, washer or clip
Damaged threads, stretched fasteners or a nut that no longer holds securely
A part that moves again shortly after being tightened
Cracks around a fastener or mounting point

Do not continue riding until the fastener has been correctly repaired or replaced.