Join Date: Jan 2015
Location: Norway, Sandnes
There are specially two things which makes them very different.
1. The bolt on a bike (FJR) is mouted in a fork, where the bolt is only keeping things togehter and take some share load. On a car (as mentioned above) the bolts might see additional load during acceleration and braking, at least if they are not correctly and equally tightened. To ensure they are equally, I always tighten the bolts in a cross pattern x 3 times. Many workshops does it only one time, and tightening one bolt reduces the torque on the bolt next to it.
2. The second thing and the most important is the lenght of the bolts. The long bolts on a bike are streched a lot more than the short bolts on a car, which will prevent the nut from coming loose. This is a very important thing, and to acheive sufficient tension, this is why using the correct tigthening torque for these bolts is so important. I know many dont't, but I use a torque wrench to make no mistake. Short bolts torque is also important, but due to the short stretch, they are a lot more exposeed to come loose because of pulsing load and viberations.
They simply cannot be compared.
2016 FJR AE (ES)
Last edited by rogerf; 05-24-2019 at 02:24 AM.