Hi everyone! Hope you can help me out with a problem with my ST2.
I bought it back in 2017, and it has been working fine until this summer. Now, I have a reocurring problem which seems to be happening when the engine is starting to work harder, from light performance up to moderate and high - uphill, accelerating, high speeds...
• it starts with a noise, from back wheel, sounds as if something was stuck between wheel and fender.
• The power from the engine is at the same time reduced, as if I was braking lightly.
• The noise disappears the moment I stop pedalling, even if the bike is still rolling.
• If I continue pedalling lightly then the engine still helps me without the noise, but as soon as I'm tempted to increase speed/power, this noise and light braking effect returns.
Does anyone have an idea what the problem could be? Suggestions for what I can try to fix this?
I bought it back in 2017, and it has been working fine until this summer. Now, I have a reocurring problem which seems to be happening when the engine is starting to work harder, from light performance up to moderate and high - uphill, accelerating, high speeds...
• it starts with a noise, from back wheel, sounds as if something was stuck between wheel and fender.
• The power from the engine is at the same time reduced, as if I was braking lightly.
• The noise disappears the moment I stop pedalling, even if the bike is still rolling.
• If I continue pedalling lightly then the engine still helps me without the noise, but as soon as I'm tempted to increase speed/power, this noise and light braking effect returns.
Does anyone have an idea what the problem could be? Suggestions for what I can try to fix this?