RE: this summer
Im told that metal linkage in the rpm arms does break, so you'll want a titanium replacement from lunsford.
just chalked up my 4th race day, and almost 3 gallons of fuel, all 4 arms going strong. unless you just want the arms, Id wait till you break them, then replace them. strong chance they never actually break.
the LST2 arms were beefed up already.