R&R Cycles In-house Big-incher
Big-inch motors are taking the industry by storm right now, and carving a wide path in the race is R&R; Cycles’ billet motor line. R&R; holds the distinction of being the only manufacturer of 100 percent billet motors in sizes 139 to 147 ci.
We followed along as the company built a 147ci — which has bore and stroke numbers of 4-1/2×4-5/8-inch — in its Manchester, New Hampshire, manufacturing facility.