Product Description
Park Tool Derailleur Alignment Gauge and straighenner for keeping drive train in correct alignment. Compatible with 16″ to 29″+ wheels (ISO/ETRTO rim sizes from 317 to 630+). Replaceable M10 threaded tip. Low-profile head fits low clearance thru-axle derailleur hangers and Shimano® Direct Mount hangers. Length: 16.5” (420mm). Weight: 22.75 oz. (645g).
Product Highlights
- Compatible with 16″ to 29″+ wheels (ISO/ETRTO rim sizes from 317 to 630+)
- Replaceable M10 threaded tip
- Low-profile head fits low clearance thru-axle derailleur hangers and Shimano® Direct Mount hangers
- Length: 16.5” (420mm)
- MPN: DAG-3, UPC: 763477002631















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