Available with 61cm (24”) self-propel and 32cm (12.5”) transit wheels. The S1 Wheelchair has some features normally found on more upmarket models such as solid low maintenance tyres and height adjustable footrests. Cost-effective and lightweight Robust steel frame Strong rear mag wheels Vinyl upholstery and padded armrests The S1 Wheelchair features a robust steel frame for durability and wipe clean vinyl upholstery for easy maintenance. The Self Propel model features rear mag wheels which provide added independence for the user.