The only mechanical assistance I've required on the bike is a lateral and radial wheel truing. With these new parts I will be perfectly able to adjust and align the chain and it's tension. I don't have a wheel truing device and I didn't want to fabricate my own. Both wheels trued up were $ 12, even the bike tech/mechanic could not tension the chain properly with the chain tensioner(s) provided with this bike in the condition they were in. I don't feel as though I'm any less of a mechanic for failing with that inferior grade hardware. Adjusting the chain tension is hardly the most complex mechanical repair I've ever done. I've rebuilt 4, 6 & 8 cylinder auto engines, not to mention rebuilt 12A rotary engines that power Mazda RX7's.