I'm thinking about getting some new rims. The Bst carbon fiber really caught my eye. For people that have aftermarket rims, how do you like them? And also does the carbon fiber hold up good on the street?
Everyone i know who has upgraded wheels reckon it is hands down the best performance mod they have done to their bike, bar none.
They improve acceleration, agility, braking, performance of the stock suspension (you may need to tweak to match the rims however) - no other single modification can do that.
Unsprung weight (i.e., weight that is on the moving part of your forks or swing-arm) is the most significant weight reduction you can do. Shaving 1 kg of unsprung weight is worth something like 5-10kg of sprung weight as far as handling goes.
Define "notice a difference".
In lap times? In how the bike actually feels and responds to inputs? In looks? Hell that big of a change in unsprung weight will require a suspension setup change, how someone won't notice that difference is beyond me.
I've ridden two bikes with march alum, one with march mag, one with a bst front carbon (rear was oem because carbon couldn't stand up to the heat cycling of WSIR). To be fair none of them were 600RRs, so I can't direct compare to this particular bike. I didn't feel they offered much, especially for the $$$. Changing ride height and trail numbers can quicken your steering for a lot less. Then again, we're spoiled by the 600RR wheels - they are extremely light.
I don't know how you guys are riding on the street to feel any of this. Personally, my track riding is so much more aggressive and I hammer on that bike, that I couldn't get anywhere near that on the street without dying immediately. And near the edge is the only place that I've ever felt like I could say 'Yes, okay, I can feel the resistance difference of this Nissin master cylinder and this Brembo RCS.' Anything less is all tire profile and bike geometry to get that different feel. You really gonna feel those grams of weight difference putting through Main St.?
Whatever - I know some of you have mad bucks and like buying nice stuff for your bike. I'm not going to say aftermarket rims don't look great and aren't totally cool, because they are.
WSIR is a very long track where the last 3 turns are actually one gigantic turn (not a big fan of it), and the radius of the sweet means you at a very high speed for a super long time. The carbon rim at the time (2000?) wouldn't survive the temperature changes.
Well it's technically hearsay - I'm taking that guy's word for it - but he seems to have the investment to back it up. There's been more than one carbon wheel maker, and I'd imagine their process changes over time so carbon wheels made now may be vastly different to those made 8 years ago.
He has a salient point about damage though - once damaged they cannot be repaired, unlike metal rims. Something to think about.
Hi all, apologies in advance for the negative 1st post but i have a 2003 RR which wouldn't start although fuel pump was ok etc just span really fast on the button but wouldn't fire. Turns out cylinders 1 and 4 had 40 psi and 2 and 3 20 psi so engine pretty well toast although was running fine...