I have this on my single speed. the screw fits into a little screwhole on the drop outs (which are front facing) and pulls the chain in the opposite direction to the pull of the cranks. on a bike with rear facing dropouts i think you use the hole closest to the screw (without the washer) and it fits somehow into the dropout.. not really sure, but it works ok on my front facing dropouts. oh and the little crests are a bottle opener - handy
I have this on my single speed. the screw fits into a little screwhole on the drop outs (which are front facing) and pulls the chain in the opposite direction to the pull of the cranks. on a bike with rear facing dropouts i think you use the hole closest to the screw (without the washer) and it fits somehow into the dropout.. not really sure, but it works ok on my front facing dropouts. oh and the little crests are a bottle opener - handy