11-64's ordered. Those with oem blk/grn 120/340, 46-42f helix with 140/200 sec spring and stock 22-40 gearing, will be first setup ran. 1 inch Hack with 120 1.175 Woodys Gold Diggers trail studs. Several other primary and sec springs to juggle with. Need to see if this keeps me up with,in front of or behind a stock clutched and stock geared 2015 MXZ 600 E-tech with 1.25 ripsaw and 84 studs, in 800ft to 1/2+ mile hardpack road run. When road is clear we can probably run close to a mile. I also weigh 75+ pounds more. I'm wondering if after 1,000 ft or so if the 11-64's may not pull rpm.