Park Single Speed Spanner SS-15Designed and built especially for single speed bikes, the Park SS-15 is a forged spanner with a 15mm socket wrench for axle nuts, 15mm open end wrench for pedals, tire lever, and bottle opener. Just the right size and length (17cm/7”) to take along or to wrench in the garage, the SS-15 is destined to be a single speeder’s favorite.763477007117