This is a fine chain and sprocket kit. The only weak spot is the aluminum rear sprocket. I'd go with steel if it wasn't so hard to find / on backorder. You'll wear out your rear sprocket before the chain. This is my 3rd chain on a torquey SV1000S with 56000 miles on it. I replaced the OEM chain ~12,500 miles, so the last chain lasted over 40,000 miles. I only recently started noticing that chain starting to knock on the front sprocket cover on decel. Definitely replace the sprockets with the chain. Even my front sprocket was slightly deformed leading to the chain slipping off and knocking the cover on deceleration.
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Had the counter-shaft and rear sprockets along with the chain installed at the stealership the other day. As expected the chain has stretched to the point of needing tightened after only 300 miles (SV3 chain). This is common with new chains, but everything seems well made. Even after a thorough beating the other day, I haven't warped or broke the rear sprocket, I would assume it'll hold up =)
This kit looks awesome, was easy to install and feels much better then the stock chain I had on my bike. I have a 08 cbr1000rr and I've never replaced sprockets/chain before. But it was a breeze. The front sprocket was hard to get off, but once I got a bigger breaker bar it came off with ease.
I have already written about DID chain. This is on the "Vortex Sprockets". Sprockets are very well made. I have used Sunstar and JT. Vortex is the best quality. No manufacturing flaws that I can see. Unlike the two other companies I've used. Awesome looking. Black coating on rear sprocket seems to be holding up, so far. 1,200 miles and still looks like new. To soon to comment on longevity. The price to quality is great.
I purchased this kit after many months of reading reviews, asking questions and checking prices. By far the best value for the money. MotoSport did a great job offering this kit, especially at this price. Install was a breeze, It looks great, and shipping was incredibly fast. Ordered it on a Thursday and by Saturday it was sitting at my front door. The only thing I would recommend is that if you purchase this kit, also purchase a chain breaker/riveter kit. It will make the job so much easier. Thank you MotoSport. You guys are great. Customer service was better than anything Ive ever experienced. The kit does include a rivet link even though its not listed as such. My 2003 Yamaha FZ1000R is much happier now. :)
As far as "rideability" goes, -1 +3 should give you a bit more "oomph" and make the ride a bit more fun as well. I would say that -1 +3 is not out of the question or too "over the top".
Also, IIRC going down 1 on the front sprocket is roughly the same as going up 2 on the rear, so careful taking a big swing on both. You're going to kill your top end speed, but it will be much easier to wheelie.