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Shimano Hub Service


Rapunzel

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my bike clearly didn't enjoy slanghoek as much as I did :-(

 

There was a persistent whining noise from the front that sounded like the break pads rubbing on the disks but re-seating the wheel didn't help. I checked the hub after the race and it feels like it's seizing. How difficult is it to service and what tools do I need? (HB-M475 model)

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Dont break your brake pads when you install them on the breakwater wall before daybreak.

 

You will need 10 x 3/16th balls for each side of the front hub, a bit of grease - any grease and two cone spanners, probably 13 or 14 and 17. The 17 can be a standard spanner but the other one needs to be a cone spanner.

 

For instructions, go to the Parktool website, they'll show you step by step what to do.

 

Do it, it is easy.

 
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Dont break your brake pads when you install them on the breakwater wall before daybreak.

 

Start preying that the hub shell's not pitted.

 

Then you will need 10 x 3/16th balls for each side of the front hub' date=' a bit of grease - any grease and two cone spanners, probably 13 or 14 and 17. The 17 can be a standard spanner but the other one needs to be a cone spanner.

 

For instructions, go to the Parktool website, they'll show you step by step what to do.

 

Do it, it is easy.

 
[/quote']

 

Fixed Wink

 

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sadly not fixed yet - opened up the hub last night and the cones are badly pitted and the bearings need replacing but thank goodness the rest looks perfect.

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Shimano supplies cone and axle sets as well as sets of bearing balls. Replace the lot and learn to read the signs of hubs that require attention.

 

When you wash your bike, spin the wheel in your strong hand, holding it by the QR, with your thumb on the axle. This will give you an indication of the bearing and grease condition. Service them before they start to rumble.

Should you ride in the wet or transport your bike on a rooftop rack in the rain, look out for signs of next-day rust. Fresh rust in bearings sound like sweet wrappers crackling in a cinema. Some people say it sounds like dry grass burning. That means the bearings got wet a day or so prior and need attention now.

Learn how to properly adjust cones. They should have a very slight amount of play off the bike, which is then squeezed out by the Quick Release in the bike. If you don't pay attention to this, the cones will be too tight in the bike, resulting in pitted cones.

 

 

 

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