This Torque Force by Canimex garage door safety stopping bottom bracket from North Shore Commercial Door is designed to reduce the risk of a door falling in the event of a section door cable breakage. The cable fixing is on the eye bolt to allow up to 2 inches of travel for the cable adjustment. This bottom bracket with 2-inch track is designed for limit switch installation. The maximum door weight is 1, pounds. If a torsion spring breaks, and there is no tension on the cable at the time of the break, this bracket will stop the door from falling.
Coming from bmx racing and have had always used a super stiff crankset. I was looking for the biggest bang for the buck In terms of weight and stiffness. I decided to go with these not because of the aero gains but for the added stiffness of a aero crank. My first impressions out of the box were how light they were. I was expecting a little more weight, so I was hesitant on how they would perform under some sprint testing. I was also worried about the build quality coming from a relatively small and new company but I was pleasantly surprised when the cranks had almost no flex and were on par with a hollow forged race crank and were perfect in terms of build quality, not a single defect I could find.
It has a fine The Vision EVO track crank brings a new level of performance and super stiff Shimano's UN55 hollow spindle bottom bracket is a reliable and affordable bottom bracket Z For non-derailleur bikes: BMX, cruisers, etc.