A chain that is too loose can jerk, make noise or knock unpleasantly while riding. A chain that is too tight, on the other hand, needlessly strains the bearings, rear sprocket, front sprocket and the chain itself. The ideal is somewhere in between – the chain should have natural slack, but must neither sag nor be stretched taut like a string.
How to do the check at home
Place the motorcycle on a level, firm surface. Ideally it stands stable and upright. The engine must be off and the motorcycle in neutral. Check the chain roughly midway between the front and rear sprocket.
Gently lift the chain up with a finger or your hand and push it down. Watch how much it moves. On many Royal Enfield motorcycles the slack is roughly 25 to 30 mm, but it always depends on the specific model. That is why it is best to verify the exact value in the manual for the given motorcycle.
What to watch for during the check
It is not enough to look only at whether the chain is loose. It is also important to check its condition. The chain should not be dry, rusty, stiff or noticeably unevenly stretched. Look at the rear sprocket too. If the teeth are sharp, hooked or unevenly worn, it is time to see a workshop.
If you see while turning the rear wheel that the chain is tight in one spot and noticeably looser in another, it may be unevenly stretched. In that case it is no longer a matter of ordinary tensioning, and it is better to have the motorcycle professionally inspected.
When it is better not to deal with the chain at home
The inspection itself is simple. Adjusting, however, requires care. After tensioning the chain, the rear wheel must remain correctly aligned and both sides of the swingarm must sit identically. Poor adjustment can worsen handling and needlessly wear out the chain set.
If you are not sure, it is better not to start making adjustments. Come to Royal Enfield GARAGE and we will check the chain for you. On a motorcycle you are renting or test riding, do not adjust anything yourself. Just tell us the chain does not seem right and we will take a look.
A quick check before a big ride
Before a longer trip, it is worth doing a quick visual check. See whether the chain is clean, lubricated and free of extreme slack. A Royal Enfield is often ridden at a relaxed pace on country roads, but that is exactly where the chain works constantly – when pulling away, on engine braking and when flowing through corners.
A properly maintained chain is not visible at first glance, but you notice it when riding. The motorcycle runs more calmly, power delivery is smoother and it feels more secure overall.
Conclusion
Checking chain tension at home takes only a few minutes. You do not need special equipment, just a level spot, some calm and a little attention. If the chain is dry, noisy, too loose or you are unsure about the correct slack, it is better to stop by the workshop.
A Royal Enfield is a motorcycle for the joy of riding. And it is small checks like the chain, oil or tyres that decide whether you truly enjoy your trip without worries.
