EasyPeez
Veteran
- Location
- Cottingham, East Yorkshire
Hi,
In the last few days I've noticed a slight grinding sound coming from my rear wheel. At first I thought it was the rotor catching on the brake pads, but adjusting them didn't help, so I whipped the pads out for a check and realised the sound was still there with no brake pads in. So then I wondered if it was the rear hub. With the wheel off I broddled about with some pipe cleaner through the middle of it and gave the spindle a clean and a squirt of GT85, but still the noise persists. Having now realised that it only happens when the rear wheel is freewheeling I think the cause is light friction between the hub and the cassette. The fact that the grinding occurs when turning the cassette backwards and holding the wheel in place seems to confirm this. I tried a bit of precision applied GT85 where the cassette meets the hub to no avail.
As I say, the noise is fairly faint and whatever the issue is it doesn't affect the movement of the wheel or performance of the bike at all. But it is a bit annoying for an OCD perfectionist like me!
One thing that has just sprung to mind is that I took it into the LBS for a new chain recently and noticed when it came out that the plastic disc between the spokes and cassette had been removed. I know lots of bikes don't have these anyway (not sure what the point of them is? Prevent spokes going into cassette if one breaks perhaps?) so didn't think anything of it. But could this be what's causing the issue? Should they have replaced it?
Any advice much appreciated. 10sp Tiagra cassette and Fulcrum Racing Sport wheels if that helps.
Thanks, Andy.
In the last few days I've noticed a slight grinding sound coming from my rear wheel. At first I thought it was the rotor catching on the brake pads, but adjusting them didn't help, so I whipped the pads out for a check and realised the sound was still there with no brake pads in. So then I wondered if it was the rear hub. With the wheel off I broddled about with some pipe cleaner through the middle of it and gave the spindle a clean and a squirt of GT85, but still the noise persists. Having now realised that it only happens when the rear wheel is freewheeling I think the cause is light friction between the hub and the cassette. The fact that the grinding occurs when turning the cassette backwards and holding the wheel in place seems to confirm this. I tried a bit of precision applied GT85 where the cassette meets the hub to no avail.
As I say, the noise is fairly faint and whatever the issue is it doesn't affect the movement of the wheel or performance of the bike at all. But it is a bit annoying for an OCD perfectionist like me!
One thing that has just sprung to mind is that I took it into the LBS for a new chain recently and noticed when it came out that the plastic disc between the spokes and cassette had been removed. I know lots of bikes don't have these anyway (not sure what the point of them is? Prevent spokes going into cassette if one breaks perhaps?) so didn't think anything of it. But could this be what's causing the issue? Should they have replaced it?
Any advice much appreciated. 10sp Tiagra cassette and Fulcrum Racing Sport wheels if that helps.
Thanks, Andy.