2012 Pro with RK Tek drop in kit Riding at the Telkwa Microwave!!

dragonweld28

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Tulumbobb

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When did you install the drop in kit. Is it the early Rev 1 kit or the new-released Rev 2 with the cylinder shim. I'm wanting to try one but going back and forth between the big bore 858 or the Rev 2 drop in.
 

dragonweld28

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i was running 64 gram polaris weights, SLP blue/pink primary spring, with kelseys #5 cut helix and an SLP red/black spring, gearing is 19/42, 8400 rpm- 44-45 mph track speeds
 

dragonweld28

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I still dont know what angles are on Kelseys helix, but i ordered a 73-57. 46 helix to see how that compares.
 
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