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Shaped from aluminium solid round bar material using an NC lathe
Bullet-proof high-pressure
Front and rear dishes optimized for incredible stiffness
Profile: 47mm
Operating Temperature Range: -20 °C to +120°C
Runwell GAUGE42A NJS Chainring Gauge Triathlon Shaped from aluminium solid roundMaximise performances with the best chainline! The specialized gauge supports self maintenance for ideal chainlines. GAUGE42A is an aluminium gauge that allows chainline maintenance by measuring the distance from the seat tube to the chainring. With one line aligned on the centre of the seat tube, if the centre of the chain fits between the two lines at the edge, the proper distance, 42 2 mm, can be judged well maintained. The best feature of the
