so search turns up two threads that actually have useful info. one from powertrix basically bashing the spl showing the broken collar, and the second was a response from spl saying theyre fine as long as you use bumpstops. so would you need bumpstops for the powertrix just to be safe? it looks like only a few mm more clearance. does the increased thread engagement on the spls make a difference? they do replace the collars for free so who has the better design? nagisa also has some crazy ones but those run around 600 bucks. maybe kuah and cpark can clear this up, just remember to keep it civilized.
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powertrix vs spl front camber - RealRacersUseAPC19:48:59 11/03/06