The specialized tarmac sl4 sport road bike 2017 feeds your appetite for performance offering all of the frame level performance features of its more expensive brethren but with a slimmed down spec that is close to unbeatable in terms of value the fact 9r carbon frame strikes the perfect balance between weight and compliance complete with a grand tour winning geometry to create a riding style that is born to climb descend and sprint with the best for the spec specialized equipped the tarma