Boss dominator mens 26 alloy fs bike lightweight 6061 alloy dual suspension mountain bike frame with 26 mtb wheels and a stronger a head handlebar stem for premium off road performance 18 speed gearing with shimano rear derailleur and micro shift rotational shifters to tackle any off road terrain strong and lightweight deep section alloy wheel rims in a hard wearing red gloss finish with large boss graphics off road 21 wide mtb tyres with deep tread for great traction on un even ground