Wheels Precision: 90 mm diameter. Centre hole 4.00mm. Pk/2 (TS2021)

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Wheels Precision: 90 mm diameter. Centre hole 4.00mm. Pk/2 (TS2021) These accurately manufactured dynamically balanced wheels are suitable for the demands of model solar car, mouse trap racer and similar competitions. The wheels have a high strength to weight ratio and are 90 mm diameter x 2.5 mm thick, have a 4.00 mm diameter centre hole, and weigh 17 grams.This wheel incorporates a series of dynamically balanced weight-reducing holes.The wheels are suitable for use as wheels for 'mouse trap competitions', 'solar vehicle manufacture' and other similar uses where high performance wheels are required. For some applications secondary schools with access to lathes can turn a groove in the outer diameter of the wheel and fit a suitable 'O' ring.