ZTTO Derailleur Hanger Alignment Gauge And Road Bike Hand Shifter Height Angle Adjust For Derailleur Hanger Alignment Gauge Material: Aluminum Alloy Body Weight: About 375g This is an indispensable shop tool that can be used to both measure and straighten misaligned derailleur hangers solving a excessive share of shifting disorders The Derailleur Hanger Alignment Gauge may also help clear up a mess of derailleur transferring problems, maximum significantly with index transferring systems This device is amazingly regular in operation The software threads instantly into the derailleur hanger The gauge bar holds a gauge which marks the distance to the wheel The gauge then is circled with the wheel to the 3, 6, 9, and 12 o&;clock positions, noting any variations in measurements The alignment of the derailleur hanger is accomplished by making use of stress to the tool&;s arm The outcomes can be checked instantly Simple to use Gauge bar fabricated from heavy gauge, chrome plated metal Adjusts to fit 20" to 29"+ wheels Replaceable threaded tip Upgraded vast inside shaft for extra power Tighter tolerances for stepped forward accuracy Improved clearance and attain to slot more frame/hanger combos adding low clearance thru–axle derailleur hangers For Road Bike Hand Shift Shifter Height Angle Adjust Derailleur Hanger Alignment Gauge Tool + Adapter Nut (If you have already got a derailleur hanger alignment gauge tool, you possibly can solely buy a adapter nut, which is acceptable for all manufacturers of tail hook straighteners on the market) five Colors Available Black, Red, Blue, Purple, Orange