HUB Failure! - MVAgusta.net
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post #1 of 8 (permalink) Old 09-10-2017, 12:42 PM Thread Starter
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Red face HUB Failure!

I set off for work this morning after checking tyre pressures/lubricating my chain. Bike was handling great on the way to work, on the journey home i got caught in heavy rain. Over the years i've rode in all kinds of conditions so i just kept things smooth, pulling up to some traffic lights a mile into my journey & the rear tyre was sliding around (i thought the road had some spilt diesel on it)
I rode up the slip road to join the motorway at around 50-70mph & there was a bang from the rear end (like something passing through the chain & sprocket)
The back end was behaving like i had a puncture so i slowed & exited the motorway, as i was coming to a stop for the roundabout at the end the rear wheel locked!. I got the bike onto the side of the road & noticed the tell tale aluminium all over the wheel. My bike is an 2007 f4 312r with 6000 miles, i do all of my own maintenance but i must admit i haven't given the hub any attention.

I can only imagine what could have happened if it was dry outside & i would have been 'moving' a bit quicker!? so lucky!

2009 F4 312R
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post #2 of 8 (permalink) Old 09-10-2017, 03:05 PM
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Originally Posted by Holtie View Post
I set off for work this morning after checking tyre pressures/lubricating my chain. Bike was handling great on the way to work, on the journey home i got caught in heavy rain. Over the years i've rode in all kinds of conditions so i just kept things smooth, pulling up to some traffic lights a mile into my journey & the rear tyre was sliding around (i thought the road had some spilt diesel on it)
I rode up the slip road to join the motorway at around 50-70mph & there was a bang from the rear end (like something passing through the chain & sprocket)
The back end was behaving like i had a puncture so i slowed & exited the motorway, as i was coming to a stop for the roundabout at the end the rear wheel locked!. I got the bike onto the side of the road & noticed the tell tale aluminium all over the wheel. My bike is an 2007 f4 312r with 6000 miles, i do all of my own maintenance but i must admit i haven't given the hub any attention.

I can only imagine what could have happened if it was dry outside & i would have been 'moving' a bit quicker!? so lucky!
Its an easy fix mate and theres plenty of folk on this forum that can help.


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post #3 of 8 (permalink) Old 09-10-2017, 06:42 PM
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Holtie;
Post a picture of the right side of the hub so we can assess damage.....
sometimes they can be saved

If not, I can supply a stock hub with new bearings

Best plan! contact gotojoe here on the Forum ....he stocks Mitch Hubs in the UK
I have 31,000mi on mine #6
They are bulletproof

gotojoe, gotojoe, mitchy and 1 others like this.

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post #4 of 8 (permalink) Old 09-11-2017, 01:45 AM Thread Starter
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Holtie;
Post a picture of the right side of the hub so we can assess damage.....
sometimes they can be saved

If not, I can supply a stock hub with new bearings

Best plan! contact GotoJoe here on the Forum ....he stocks Mitch Hubs in the UK
I have 31,000mi on mine #6
They are bulletproof

I'll post some pictures later, Wow 31k! Yes i think i'll go down the Mitch's Hub route for piece of mind

2009 F4 312R
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post #5 of 8 (permalink) Old 09-11-2017, 04:26 AM
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Originally Posted by Holtie View Post
I'll post some pictures later, Wow 31k! Yes i think i'll go down the Mitch's Hub route for piece of mind
Hi Brian.

Firstly sorry to hear of your hub failure and happy that you aren't injured... I had a sprocket carrier collapse at low speed on another bike...The day before I'd been belting through the Connemara mountains so the gods were looking down on us !

I have a Mitchy Hub here is stock so I have sent you a mssg.

I find emails easier so if you like contatct me at [email protected]

If you have mangled any other parts let me know as I have some spares here also.

Cheers

Joe
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post #6 of 8 (permalink) Old 09-15-2017, 07:18 AM Thread Starter
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Had the day off work so I started stripping the bike down, Check this out! Back to saving pennies now
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2009 F4 312R
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post #7 of 8 (permalink) Old 09-15-2017, 01:34 PM
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That looks nasty,the small amount of grease that is left in the needle bearing is discoloured also,looks like a bit of water ingress.


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post #8 of 8 (permalink) Old 09-22-2017, 10:35 PM
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The only way water gets into the needle bearing is if the sprocket nut isn't torqued correctly


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