Chain stretch

[howdamnhard]

Hi I've got a Gn250 and everytime I check the chain it seems to have stretched.The bike is less than a year old and there is only one notch left until the chain is history i.e. stretched to the max.The sprockets are mint.I like using the throttle for braking and enjoy the odd quick pull off but surely this amount of stretching over such a short space of time is ridiculous ,is this normal ? I've heard the Gn's come with cheap Chinese chains.

[Black Bandit]

Dude, we've been through this already. Howdamnhard is it to buy a new chain?

[howdamnhard]

Are there any better chains out there that will fit ?Anything has got to be better than the crappy original,otherwise I'll be going through chains every 6 months.

[Black Bandit]

Are there any better chains out there that will fit ?Anything has got to be better than the crappy original,otherwise I'll be going through chains every 6 months.

From memory I've fitted a 520 D.I.D chain. Lasted fine over the months without adjustment. Cheap and cheerful - not even an O-ring chain.

[Black Bandit]

I've got a suspicion that certain dealerships are fitting crappy chains to the bikes on the shop floor. You bought your bike from a dealer, right? Me too, had the exact same problem until I took it in to a workshop and had the chain replaced along with some other work that needed doing.

See:

http://www.kiwibiker.co.nz/forums/sh...44&postcount=1

[howdamnhard]

Thanks for the advice Black Bandit, I'll be needing a new chain soon.

[gambit]

when ya bike is on the centre stand and you spin the back wheel does the chain tighten then loosen? if it does the sprockets are worn or the chain is stretched or both,how much play do you set your chain at , you may have it too tight ,causing it to stretch. chain n sprocket kits are cheap for gns . hope this helps ya mate

[FROSTY:Me]

the new GN's are built to a budget so they use a cheap chain.
Most likely if ya put a decent new chain on itll last ya forever

[Squiggles]

if you've after a cheapy chain cycletreads has a pile of them that they're selling for $25 a chain... heavy duty/normal ones, of various makes (some quite good) i bought a heavy duty one from colemans for $65 and a o-ring one from haldanes for $100, oring one will last longer with less lubing needed they reckon, piss easy to fit as they're clip types

[Pancakes]

You use those clips at your own risk, I threw a chain after 15/20 k's and then got it rivet linked at cycletreads www.cycletreads.co.nz no problems now. Frosty rescued me and told me they seem to go lots, a cop I ran into while waiting for Frosty siad he'd thrown three, one time causing the rear wheel to lock up. You also risk a hole in the crank case and the stuff the new GN's are made of I'd put money on a chain going thru, I agree, seems bikes are coming off the floor with the shittest chains money can buy, get any ok one, get it put on PROPERLY and with the power the GN has it'll go for ages. Remember, chains are rotating AND un-sprung weight so even tho it's a GN you will notice the difference a lighter chain will make (still needs to be strong enough for road use).

[Squiggles]

given the forces my gn's chain is put under compared to those that say my gsxr is... i wouldnt use a clip type on the gsxr but on a gn i've got no probs with it, from memory i dont even think i was offered a rivet type from any of the stores i bought one for (for the gn)


i think i implied that the chains they're selling for cheap are shit... they're good chains, just that the packets are a bit crappy looking (oil smears on a couple of them)

[Str8 Jacket]

From memory I've fitted a 520 D.I.D chain. Lasted fine over the months without adjustment. Cheap and cheerful - not even an O-ring chain.

The last DID 520 chain I had lasted less than 5000 k's! Im definately an Oring convert...

[bimotabob]

Hi

The original chains are chinese rubbish and break easily the rest of the bike isn't great either - dump and run I say.
They are cheap copies of the Japanese ones from the 80's.
Get a CBR250 MC22 or perhaps a 19 and you never regret it as they are the benchmark 250 fourstroke even after all these years.

Cheers