Wherever you rode last time they had salted the road as there is spots of salt and corrosion on the chain wheel ect you needed to wash ot off and lube the chain properly I boil mine in chain wax no problems and last twice as long
Trek have bodged up the sizes on the new 750 they just made a new front triangle to fit the battery in cheep way ov duin it and a grand more to big a gap between M And L
Love my 98 xt rail in L problem I have is the new L is longer and the M shorter they just changed the front triangle to fit the battery ? O and upped the price by£1100 😩