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I always measure a factory frame following delivery and adjust accordingly prior to derailleur alignment. Should one experience mid-cog derailleur shifting problems, the likely cause will include a misaligned frame and/or hanger. When properly bending a hanger, one must first ensure that the entire frame is aligned as well using the FAG-2. This is an inexpensive means of ruling out problems with respect to frame and rim alignment issues. The general order of work for truly solving shifting issues will be as follows: 1. Check and true rims on Park TS-2. 2. Check frame alignment with Park FAG-2 and adjust carefully. 3. Check hanger alignment with Park DAG-2.2 and adjust carefully. 4. Tune/ adjust derailleur and related components to specification. Of course, some will find success with merely adjusting cable tension, etc. I utilize every step of detailed work for my lengthy tours and it has paid off with thousands of trouble free miles minimizing component wear.Read full review
Verified purchase: Yes | Condition: New
An excellent tool for keeping your frame true - Novices must follow the instructions intently else face damage to their frame(s) - If you have a history of dumping your bike, then this tool is a necessity!
Verified purchase: Yes | Condition: New
I like to update old bikes and that often involves cold setting the rear triangle. This tool allows me to modify the frame and yet know that everything is square and true. Use this in conjunction with the dropout alignment tools and the derailleur alignment tool and you can know that the frame is ship shape. Must have tools.
Verified purchase: Yes | Condition: New