I can't find any info on this. I've run a D.I.D ERV3 520 for about 30 track days on my gsxr 750. Chain still in near perfect condition but was wanting to measure stretch, or wear limits. Can anyone give me the numbers or point to a site that has the info? BTW already looked all over DID website. Thanks for the help.
Replace at the beginning of the season if you're doing 10 or more events a year. A few hundred bucks for a chain and sprocket kit is nothing compared to the money spent on 10 + track events some of you do in a year. Chain failure can be one of the worst mechanical catastrophes possible. People have damn near lost a leg because of it. Not to mention, busted engine cases, rear wheel locking up when chain gets jammed in rear wheel/swingarm while going 170mph, etc... Consequences far outweigh the minimal cost involved to have a good, strong healthy chain.
^^^ I run the RK GXW gold and install a new one every season, not worth the risk. Trackdays for me, no racing yet.
I actually watched that video last nite. But with limits measured in mm it would be nice to know what DID says or RK is for their maximum limit? Thanks for the replies
if you have to ask.... replace it. And do yourself a favor, do the sprockets at the same time. This is not the place to save a buck, worn sprockets lead to more issues. Keep the chain on while you loosen the output shaft sprocket, and put a WOOD broom handle thru the rear wheel. my $.02
An impact gun will spin the countershaft sprocket right off without trying to keep the motor from turning over by wedging things in place. When torqueing (sp?) the countershaft sprocket nut, (with new chain on, torque wrench in place), sit on bike and hold rear brake. Tighten to torque spec.
http://www.harborfreight.com/12-in-electric-impact-wrench-68099.html And dude, why do you take everything so personal? Quit yer cryin' already. I'll buy you an impact if it makes your life a little more manageable. Damn. btw, my trailer is only 12'.
HA! Now that's a good one.. me, take it personal! No crying here, I was just cracking a joke, simmer down. Truth is, I DO have an impact, but I tend to take the low tech, old school route when explaining because I never know who has what or how much experience people have. I find that those who are asking these type of questions often are relatively new to the sport and a quick, simple explanation is MUCH easier for them.
Hey Todd - you probably know this, but your bike owners manual might provide stretch tolerance data. Might not match for the brand chain you have, but would give you some idea. Best, Curtis
The more I thought about this the more I agree with a few of the other posts. You have got more than your moneys worth out of that chain and sprocket set. Don't risk it and just order a new chain and sprockets. If you crash it's bad enough but what if you take a couple other people with you when you go down?
Sprockets too??? Jk , I have several rear sprockets I change out for different tracks each one of which is near mint. I also degrease, clean, and re lube the chain every other track day while its hot just after the session. I'm ordering a new DID and will check the old ones tolerance against it and let you guys know how good or bad the old one is. Thanks Cjc I'll check the manual.
Old chain measured 1 mm stretch at 4' length which is well within spec. However before measuring old chain make sure you apply some static weight to it, around 40-50 pounds is good. Also it is worth noting that the rollers did show more significant wear compared to the new one. Your service manual lists stretch specs unless you have converted to a 520 from say the OEM 530. I have used 4 chains on the shelf, it's good to be able to compare them. Hope this helps :thumb:
Change your chain and sprockets before every track day, or else you're a cheap ass. I mean c'mon, are you trying to make the universe implode or something!?? Fuck's sake.
I figured if I bought 3 chains and alternated them every track day I could get 7 years worth of track riding out of them. But I'm keeping my oldest , loosest piece of crap chain that's been spliced like 3 times for when you come back to Barber Dave :wheel:
Your sarcasm is pathetic. You seriously act like a 15 yr old punk school boy that doesn't know when to stop running their mouth. Give your smart ass comments a rest. You and a few others are the ones saying stupid shit constantly. Any opinions on oil, brake fluid, chain life , etc., are simply bits of info intended to help. I, or others, haven't put anybody down or said anything derogatory to someone else's opinion. Your comments are again, pathetic. On a 600, a 520 chain at a trackday pace will last longer than on a 180 HP, 520 equipped bike with an expert rider/racer. Thousands upon thousands of dollars are spent doing a season. 1.5% of that money spent shouldn't go to a new chain and sprocket kit every year? It's all about preventative maintenance and upkeep. If you're turning 24's at Putnam or 31's at grattan, you may never need a new chain, ever. And you're probably in that category. Go get yourself a girlfriend or dog. You need something in your miserable life.