VinzenzFSR

bought a spire just 3 hours ago. rip

theres way too much BAD ENGINEERING PRACTICE going on in the whole bicycle industry. its making me sick.

well... a new honda or yamaha 450cc motocross bike is definitely better fabricated than any mtb you can buy. mtb prices are a complete joke for what crap quality you get.

@MTB-Raceshop: yeah i snapped one too... well it was my car after 200000km

THEY FINALLY DID IT! Belt + Gearbox + spanner on the chassis. this is going to be the smoothes rear end out there!

@TransitionBikeCompany: can you confirm that dual crowns are not approved? even on the aloy builds?

@gabriel-mission9: yep been having a look at those some time ago too. also theres other prototype-state springs made of composite materials. (rheinmetall had something interesting in development if i remember correctly) id say you are right about the friction caused by coiled springs being insignificant, however i do know that it is a problem that must be accounted for when chosing the shaft dimensions. (maybe not on bicycles but in the automotive world)

@gabriel-mission9: it is not about the imperfection of springs but about the inherent principle of coiled springs. think about how the force is transferred from the coil to the spring retainer (federteller). most of the compression force is transferred vertically at the contact point between the normal winding and the last flat winding. the rest of compression force is transferred with decreasing amount around the spring retainer due to the torsional bending of the spring-wire. (and some bending forces if you want to be exact) in short: the overall compression force is not evenly distributed around the last, flat winding on both ends of the coil spring. you are correct though in that these bending forces are the highest when the spring is compressed the most wich is also when the distance between the bushings inside the damper is the largest and thus the resulting normal-forces on those bushings are compensated a bit