Average hours on chain & sprockets?

[liv2day]

I used the search function and looked through a bunch of threads on chain & sprocket replacement (leaning toward Ironman stuff after that), but only saw a variety of mileage (600 miles on up).

I've logged 84 hours on my 200 and guess there was probably ~10 hours or so on it when I purchased her.

I need to check the front sprocket for hooking, but the rear sprocket is in good shape. I have noticed tight spots, but there isn't a ton of lateral movement. Unfortunately, I neglected to tighten the chain before my last ride and she jumped off. Luckily, it didn't spin and I was able to get the chain back on and finish the ride. Didn't happen again, but it has me wondering if it's time to replace the whole kit.

The adjusters show slightly more than 2 "bars" left before the axle reaches the end.

Wondering if 84 hours means it's about time to replace or what others have experienced?

 

[Jakobi]

It depends on a million.

Big bores eat everything. Your little 200 probably lesser. Mud and sand eat chain and sprockets. In my 65hrs I've been through 2 (maybe 3) front sprockets, and toasted a set of countershaft seals. Rear is a superstealth and they hold up really well. Have a new chain and front sprocket on the ready.

Basically, you can measure the pins on the chain to check for stretch tolerance. You should be able to find these specs somewhere (I know Yamaha manuals have them). The fit on the rear sprocket should be snug in that when you grab tha chain and pull it away from the teeth it should stay nicely in place. Worn will almost pull off the sprocket.

Some will say replace everything at once - but the key to take note is that one worn element will increase the wear rate on everything else.

 

[Eric K]

On my 2 GasGas 300?s, I got 2961 miles and 3250 miles out of Ironman front sprockets trail riding in Oregon and Washington west of the Cascades. Admittedly, they were quite hooked when I replaced them. I should have replaced them earlier.

In comparison I got 648 & 879 miles out of the stock sprockets and 681 miles out of a Sprocket Specialists sprocket by the time they were significantly hooked.

Overall, I average 13-14 MPH riding technical woods trails with my sons and friends.

 

[liv2day]

Thanks for the replies guys

Checked the front sprocket this morning and it's not hooked at all; there's a bit of play when pulling the chain away from the rear sprocket - I'd guess 3-4mm, but no chance of jumping off (assuming I was doing what you described in your post Jake).

Jake - sounds like you abuse the hell out of your front sprockets...LOL.

Eric - do you still live in this neck of the woods? 13-14mph average speed is quick compared to what I usually average on most of the trails in Tillamook, think I'm around 8

I'm going to get a full kit ordered up and have it on hand, my guess is I'll be swapping everything out in the next ~20 hours or so.