A VERY WELL CARED FOR BIKE PLEASE SEE PICS IT HAS GEARS THAT WILL TAKE YOU ANYWHERE FROM THE TOUGHEST HILL TO THE FASTEST SLOPE AND IS EQUALY AT HOME CRUISING ALL DAY I LOVE THIS BIKE ONLY SELLING BECAUSE OF UPGRADE THE SIZES ARE AS FOLLOWS 21 INCH ALUMINIUM FRAME' SHAMANO INDEX SYSTEM GEARS' ECT ECT FOR FULL SPECS PLEASE LOOK ONLINE' THIS IS A VERY GOOD BIKE SO PLEASE NO TIME WASTERS PEOPLE WHO KNOW THEIR BIKE'S WILL KNOW THIS IS A BARGAIN £110 OR VERY NEAR OFFER THANK YOU