Waiting for a Roadlok to arrive, so just wondering if anyone knows the tightening torque for the front caliper bolts? Ta.
Front calliper retainer M10x1.25 45* GREASE B From 1200 DVT workshop manual - it's the same for the 1260. 45 NM - Newton Meters I don't know exactly what Grease B is, but but I use a light grease.
AI point of view For a greased thread, the recommended torque is lower than the dry torque value, typically 25% to 50% less. To find the correct value, take the manufacturer's recommended dry torque and multiply it by a reduction factor based on the lubricant used. For example, multiply by 0.65 0.65 for most oils or 0.50 0.50 for a full graphite or moly coating. How to adjust torque for greased threads Find the dry torque value: Consult the manufacturer's specifications for the dry torque value for the specific fastener, its size, and grade. Identify the lubricant: Determine what type of grease or lubricant is being used. Apply the correct reduction: Use the following multipliers to reduce the dry torque value: 0.50: For a fully coated graphite or moly lubricant. 0.65: For a full coating of engine oil, penetrating oil, or anti-seize. 0.75: For a light application of oil or anti-seize. 0.90: A general rule of thumb for oiled threads is to reduce torque by 10%. Important considerations Torque is not a precise measure of load: Lubrication reduces friction, so the same torque value will result in a higher clamp load. Applying the recommended torque for a dry thread to a lubricated one could cause fastener or joint failure. Follow manufacturer recommendations: Always prioritize the specific instructions from the equipment or fastener manufacturer. If they specify a torque value for a lubricated assembly, use that value. Galling prevention: In some cases, such as with stainless steel, lubrication (often with an anti-seize compound) is required to prevent the threads from galling, which is a process of seizing and tearing.
Can I point out that all of this is completely irrelevant unless you've recently had your torque wrench calibrated or are certain you've paid enough for one for it to be, and remain, accurate. Do you store it wound right off? If not it's likely to need a calibration sooner than you think.
Good point well put... New torquewrench 10 - 80 nm range from Nielsen tools, stored unwound and away from the fridge/cooker/ children etc.. It's more to get a Ball Park idea of how tight these bolts need to be tbh ..30+ years as a mechanical fitter will guide me too I reckon. Thanks everyone for your help.
Rule of thumb, tighten til your knuckles go white and then give it another half a turn….. of course if it goes ping then your knuckles haven’t been calibrated recently.
In this case it is a specified greased thread; so the above is interesting but irrelevant for Ducati's quoted torque for the caliper bolts.
