8.5 x 2.5 Inch Solid Tyre Wheel (Multiple Options)Key notes: 8. 5x2. 5" solid tyre compatible with Dualtron Mini and Speedway Leger electric scooter models, suitable for both front and rear wheels Durable rubber material with grooved surface, which provides better grip on slippery terrain Please note that solid tyres are difficult to assemble, it is always recommended to take it to a specialized repair workshop