The Avid 20R Brake Shoe are symmetrical, for use on front or rear linear pull brakes. 20R Rim Wrangler 2 inserts fit 2001 Avid and other Shimano-compatible pad holders Rim Wrangler pads fit pre-2001 Avid pad holders 20R pads are symmetrical, for use on front or rear linear pull brakes All complete brake pads include mounting hardware Color: Black Post Mount Type: Threaded Pad Use: Standard Brake Fit: Linear Pull