thewayout Posted March 17, 2018 Share Posted March 17, 2018 (edited) 3 minutes ago, Rod Johnson said: Is the XCR still a 2.52 pitch? Pretty sure the IQR is still a 2.52 128 Yes. The Pro-s is 2.86 in all variations though. Edited March 17, 2018 by thewayout Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Highmark Posted March 17, 2018 Platinum Contributing Member Share Posted March 17, 2018 (edited) 1 hour ago, Rod Johnson said: More lugs on the ground. Maybe 1 or 2 on the 136 v 137. Probably none on the 128 v. 129. More lugs also mean more rotating mass. Edited March 17, 2018 by Highmark Quote Link to comment Share on other sites More sharing options...
Rod Posted March 17, 2018 Share Posted March 17, 2018 1 hour ago, Highmark said: Maybe 1 or 2 on the 136 v 137. Probably none on the 128 v. 129. More lugs also mean more rotating mass. A 121 actually will have an extra lug on the ground compared to a 129 Quote Link to comment Share on other sites More sharing options...
Rod Posted March 17, 2018 Share Posted March 17, 2018 A 128 will actually have a little more lug on the ground than a 141. ot helps on hard pack. I haven’t seen any top end advantage with the 2.86 tracks. I’m sure the extra lugs probably are no benefit in the powder Quote Link to comment Share on other sites More sharing options...
Rod Posted March 17, 2018 Share Posted March 17, 2018 Gotta be a reason that Poo has been sticking to a 2.52 on the IQR Quote Link to comment Share on other sites More sharing options...
Edmo Posted March 17, 2018 Share Posted March 17, 2018 3 minutes ago, Rod Johnson said: Gotta be a reason that Poo has been sticking to a 2.52 on the IQR If I remember right the reason for going to 2.86 and 3.0 was for a lighter track. Seems that would help the racer as well. Quote Link to comment Share on other sites More sharing options...
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