From ripping fast gravel road riding to long distance tours toughroad slr is all about big adventure on unpredictable terrain built on a superlight aluxx slr frame and fast rolling 700c wheels it has an agile chassis and tough trail worthy features the d fuse seatpost adds compliance and the bike is fitted with wide tyres to smooth out rough terrain frame aluxx slr grade aluminium fork composite aluxx overdrive steerer drivetrain shimano acera 27 speed brakes shimano m315 hyd