21-09-19, 05:23 PM
Thanks for replies. Had been thinking of new chain and sprockets. I changed the front sprocket last year and took it down to 15th and also changed the sprocket nut too. Ive no idea what age chain is , as I never got told that when I bought it. I do keep it well lubed as bike is use the bike weekly. Will have a look tomorrow and see how chain is running over front sprocket. Hope that's the solution. Thanks again.