Published on January 17th, 2015 | by The Powerhouse
Thumper Big Bore 570cc
I really enjoyed riding my Big Bore 570cc KTM with a 2015 Timbersled LT yesterday. Very impressed with the power output, particularly the torque pull on the arms. A Thumper Racing Big Bore kit with a stage three camshaft and Kibblewhite valves, AWESOME!! Also very much like the improvements on the 2015 Timbersled kit, excellent! A great day in the sunshine and powder.