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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.
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 =)
I was pleased, for an aluminum sprocket these are super thick and half the weight of the stock sprocket. If you replace your chain and all the sprockets they should last a good long while. Definitely great quality and finish.
I recently purchased the 525 pitch to replace the 520 that I'd had for nearly 10k miles. It still had plenty of life but a piece of semi tire chewed the last few thousand out of it. These kits are awesome. I give five stars on everything but ease of install. As for Motosport... I love you guys. I was having issues ordering online so I called. Dave helped me order what I needed and then we were talking about previous rides and scary moments we'd both had. The guys at Motorsport understand riders because they ARE riders... awesome site and people!
The only reason I don't rate this product 5 stars is because I just installed it last week, and now I am been asked to rate my purchase ...
Well it is too early to say how durable this chain and sprockets will be but the manufacturing on this items seems very high quality, the install was done by my trusted mechanic he said it was easy, he cut the chain to OEM size. Performance is good where the bike feels strong, snappy, very reactive to throtle (the old chain was loose and it could not be adjusted anymore). Good product so far ... hope this helps.
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.
Great deal for the money
Front steel sprocket and light weight rear sprocket
Nice strong chain fast and easy to install great product
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".
NOTE: Adding teeth to the FRONT sprocket has the REVERSE effect on acceleration.
SUBTRACTING from the front sprocket is the same as ADDING to the rear. The closest ratio I can figure for a 600c (In my case, a Yamaha YZF-R6) is -1 in the front is the same as +2 to the rear.)
More teeth on rear sprocket = Faster acceleration, less top end, less fuel economy.
Less teeth on rear = Slower acceleration, higher top end, better fuel economy.
Also, your chain has a (little) bit to do with this. A 525 chain is heavier (yet more durable), thus, it has more mass for the drive to rotate. A lighter (520) chain will make it a bit easier for the bike to pop off the line, but is less durable. If you are commuting on this bike, I would recommend sticking with the stock 525 pitch. It'll last you much longer. Good luck!
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.