Clean and Simple is always best. Leverless design for added security and clearance for when situations get tight. These super tough axles tighten up with a 6mm Allen key. They feature "a get out of jail&'; 6mm Allen key on the drive side of the axle if you manage to round the non-drive side. Constructed from 7075 Aluminum and made to the manufacturer&';s exact specifications. 173.7mm fits: 5010 V4, 5010 V5*, Blur V4*, Bronson V4, Bronson V5*, Bullit V3 MX (E-bike), Chameleon V8, Heckler V9*, Heckler SL V1*, Highball V3.1*, Hightower V2 (MY22+ only), Hightower V3*, Hightower V4*, Megatower V2*, Nomad V5, Nomad V6*, Tallboy V4 (MY22+ only), Tallboy V5*, Vala V1*, and Juliana Equivalents *Note: The UDH bolt is only compatible with Sram UDH Hanger, not the native SCB Alloy Hanger. The axle itself will still work with the SCB hanger SPECS table{border-collapse:collapse;width:100%;} td{text-align:left;padding:8px;font-weight:350;} tr:nth-child(even){background-color:#f2f2f2} th{background-color:#eb212e;color:white;text-align:left;padding:8px;} .desc .specs-heading{font-size:24px;font-weight:600;padding-top:35px;border-top:3px solid #f0f0f0;display:inline-block;border-bottom:4px solid #eb212e;width:142px;margin:0;} Model Santa Cruz Bikes 173.7 Description 12x173.7mm Rear Axle Axle Length (mm) 173 Thread Pitch M12x1.0 Color Burgtec Bullion Gold