RITCHEY TORQUE KEYS Properly install your Ritchey carbon bars and stem without fear of over-tightened bolts. The torque key is calibrated with an indication you both feel and hear. Now available with interchangeable bits in popular sizes: Available in two verisons: 4Nm version, (for Ritchey Breakaway down tube coupling) with 4mm, and 3mm hex keys and T-20 Torx bits 5Nm 6 Bits - The smartest, most convenient torque key now comes with bits to suit every need. Same great T-handle shape and reliable “click” when reaching the max torque. For best results, we recommend using TACX Dynamic Assembly Compound with carbon fibre components. FEATURES Hex 3/4/5, Torx T-20/25, and Philips #1 Available with 4 or 5Nm max torque Bit holder included Magnetic Bit Retention