Unior 1647/2ABI-US Chain Tool with Replaceable Pin

The Unior 1647/2ABI-US chain breaker is a workshop tool for opening and closing bicycle chains from 5 to 12 speeds. It is suitable for mechanics and workshops that work on different types of bicycles.

• Works on 5- to 12-speed chains, including 12-speed SRAM and Shimano chains
• Also compatible with 11-speed Campagnolo chains
• Replaceable driving pin with a ball bearing for smooth pressing
• Support for freeing stuck pins, useful with stiff links
• Not suitable for SRAM Flattop chains or 3/16" pitch chains

Technical specifications

• Model: 1647/2ABI-US (SKU 624900)
• Chain compatibility: 5- to 12-speed chains, including 12-speed SRAM and Shimano chains and 11-speed Campagnolo chains
• Not compatible with: SRAM Flattop chains and some single-speed chains; works with 3/32" and 1/8" pitches, not 3/16"
• Material: "premium flex" carbon steel; trivalent chrome finish
• Handle: double-component, textured surface
• Dimensions: 150 × 22 × 72 mm
• Weight: 175 g
• Pin diameter: 3.4 mm
• Type: screw-operated tool with a replaceable driving pin supported by a ball bearing; support for freeing stuck pins
• Recommended spare parts: 1647.1/4A pin (pack of two), 1647.3 steel ball, 1647.2 pin nut
• Origin: Zreče, Slovenia