Crank shop twins?

[x-5]

Anyone have any real time on a pair? I can get a smoken deal on a set just needd some input. I have a rk 860r on my 07 xrs will they work with it? Any input is great. Thanks guys

 

[tukernater]

i have a set of big volume on my 03.5 800 summit ported with cudney head 14.1 works good pulls real hard big gain for snow drags, but in the mountains they are terrable,tried reclutching many time ,after 4000feet they just don't work,well for me anyways,but it not a big bore either[yet]

 

[aksledneck]

have a set on the rt, heard alot of bad tuning stories about them but figured to give them a go. I have had good luck with them, I think running below 5,000 and a good clutch setup are the keys. I have heard high alt. and these twins don't mix, just my 2cents.