nubsey Posted September 26, 2017 Report Share Posted September 26, 2017 I have just got a gas gas 125 for the grandson. I have been looking at the regulations, and it states that it must have a lanyard kill switch. That is no problem. But it also staes that it should have a chain guard. Well I have trolled the internet, and can find no specifications for them. The bike has a small guard by the front sprocket, and also a small guard on top of the chain. But is this enough. DOES ANYONE KNOW WHAT THE REGS ARE. i AM HOPING WHEN WE GET THE BIKE GOING TO TAKE HIM TO A LOCAL MEET, BUT WOULD HATE TO HAVE TO COME HOME BECAUSE HIS BIKE IS NOT UP TO SPEC. aLL THE BEST nUBSEY PS Sorry about the cap lock Quote Link to comment Share on other sites More sharing options...
feetupfun Posted September 26, 2017 Report Share Posted September 26, 2017 You will need to say where you are because rules are different all over the world Quote Link to comment Share on other sites More sharing options...
nubsey Posted September 27, 2017 Author Report Share Posted September 27, 2017 Opps sorry. I am in the good old United Kingdom. Actually England. Yes a Pom. See the trouble these regulators make. Quote Link to comment Share on other sites More sharing options...
cleanorbust Posted September 27, 2017 Report Share Posted September 27, 2017 Sounds like you have the standard chain guard, which covers the rear tyre area where the chain runs alongside it. This would satisfy the regulations. Quote Link to comment Share on other sites More sharing options...
collyolly Posted September 27, 2017 Report Share Posted September 27, 2017 You need the shark fin style guard that sits just in front of the rear sprocket at the bottom, the point where the chain and sprocket create a nice finger remover ! I think GasGas have always fitted one so even if yours is missing it should be easy to replace. Quote Link to comment Share on other sites More sharing options...
cleanorbust Posted September 27, 2017 Report Share Posted September 27, 2017 The ACU Standing Regulations for trials state that a chain guard should be fitted as per manufacturer's specification. Lots of bikes are used without the lower guard referred to above, desirable though they may be. Mind you, the same regulations state that all machines should "have a helmet and suitable boots" ! Quote Link to comment Share on other sites More sharing options...
faussy Posted September 27, 2017 Report Share Posted September 27, 2017 The sharks fin at the rear sprocket is probably the most important. As collyolly says, if it isnt there there should be a bracket on the swingarm to replace one. Quote Link to comment Share on other sites More sharing options...
nubsey Posted September 27, 2017 Author Report Share Posted September 27, 2017 Thanks a lot lads, Here are piccys, so I assume all is ok. Just need to get the bike going and fit a lanyard type cut-off switch/ Quote Link to comment Share on other sites More sharing options...
collyolly Posted September 27, 2017 Report Share Posted September 27, 2017 Perfect, I would treat that chain to some lube ! Quote Link to comment Share on other sites More sharing options...
nubsey Posted September 28, 2017 Author Report Share Posted September 28, 2017 Yes. Must do. It also looks a bit loose, so must adjust. It seems to have some lube on it. I ride a bike which is shaft driven. Much easier. Nubsey Quote Link to comment Share on other sites More sharing options...
cleanorbust Posted September 28, 2017 Report Share Posted September 28, 2017 Yes, does look rather slack. The top run of the chain appears to be drooping. After adjusting remember to check the chain tension when someone is sitting on the bike as that takes up some slack. Quote Link to comment Share on other sites More sharing options...
faussy Posted September 28, 2017 Report Share Posted September 28, 2017 (edited) The general rule of thumb (pun not intended) is a fingers width between the top of the chain tensioner block and the swingarm. Edited September 28, 2017 by faussy Quote Link to comment Share on other sites More sharing options...
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