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See the manufacturer's page:

Handlebars from 74 to 100 cm Adjustable shoulder strap Stand Reflectors on handlebars and deck Dimensions: Length approx. 82 cm Tread approx. 30 x 11.2 cm High-rebound wheels 180 mm Ø made of cast PU, 87 A Ball bearings ABEC 5, chrome Max. User weight 100 kg

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