Is this the ‘clicking’ sound I’ve read about or is it something different? I’ve greased the washers on the rear frame joint, but the noise seems like it comes the drivetrain. All help gratefully received!
Well, I managed to decrease the tension but only by hammering the bottom bolt, as the recess for the Allen key has been stripped out by the previous owner! Is the bolt a standard size that I can buy? Or do I need to go to Strida for it?
I think I’ve worked out what’s actually making the noise - the outside edge of the rear sprocket is very close to the frame and it’s scuffing when under strain. The edge isn’t continuous, which was why the sound was intermittent (‘galloping’).
Hmmm. So I loosened the belt a bit, and ended up replacing the wheel bearings in case it was them (surprisingly easy once you know how), but it’s still making the noise and I’m guessing it’s the freewheel now.
Is the removal tool for it Strida-specific? Or is it a tool that can be sourced easily?
I’m truly flummoxed now. I took the rear wheel apart - freewheel seems fine, and anyway the sound is happening when the freewheel is in motion, only when it is static (ie. when pedalling and the belt is turning the wheel). Also, I can make the noise stop if the freewheel is stopped in a different position on the wheel.
As it’s only happening when pedalling, it can only where a static part of the bike (the axle, frame, brake calliper) interacts with the turning wheel. So I’ve narrowed it down as follows:
Definitely not the brake disc or calliper
Not the bearings (replaced them)
Don’t think it’s the freewheel for the reason above (although I’ve removed it, I can’t completely dismantle it at present)
It’s not the crank or bottom bracket (checked that even though that’s not where the noise seems to be coming from)
I’ve cleaned the belt and the teeth at the wheel and on the crank
So I think the noise is either coming from:
Where the wheel bearing pushes against the big hexagonal bolt on the axle (part 340-08)
Where part 338 pushes against the bearing (449) - maybe I’m overtightening it? (I have no torque wrench)
It’s so annoying because I’m loving the bike but the noise is annoying me no end!
Thanks - I got as far as removing the freewheel, but the pins on my 2-pin removal tool were too big to unscrew the bearing race. I’ll get a better tool and then rebuild it - I’m guessing you think it’s the bearings from that sound and not something else that has worn out?
That’s what I meant - ‘bearings’ can also refer to the balls in English. To be honest, I’m still sceptical that it’s the freewheel making the noise, as it is in a locked position when the sound is happening, but it’s another thing to tick off the list.
A little bit further along - I wondered if the noise might be from the bottom bracket rather than the hub, and the noise was being transferred down the bottom tube to make it sound like it was at the back of the bike.
So I removed the bottom bracket and took the bearings out. I found this mess on one side:
I’ve ordered a new set of bearings. It’s important to note that, although the bearings in the bike are labelled ‘6002-2RS’, they aren’t the same size as those with the same name offered for sale on eBay etc. The dimensions are 31(outer dia.)x16(inner dia.)x10(width)mm so I’ve ordered some 163110-2RS bearings instead.