This Pair of Fat Offroad Wheelchair Wheels are designed to be swapped for your standard 24 inch wheelchair wheels with the minimum of fuss. Supplied with quick release axle pins, these FAT offroad wheelchair wheels equate to the same diameter as a standard 24 inch wheelchair wheel, which means you shouldn\'t have to adjust your wheelchair\'s brakes. With 4 inch wide Schwalbe Crazy Bob tyres these wheels offer superb comfort and traction by using Schwalbe’s offroad racing compound to enhance the grip and performance and offer greater protection to the sidewalls. These wheels are supplied with axle pins suitable to fit most standard wheelchairs, however, if you are at all unsure if these will fit your chair then please contact us.