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Wheel Bearings and No Dust Seals Yes or No

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Hi I'm new to this forum.

Had a look a round and cant really find the info I want.(but this site is massive)

I'm doing a hooligan conversion to my DRZ and had to mill out where the dust seal sits for the rear wheel bearing on the disc side.

Can I just fit a sealed bearing or do you think I should stick it back on the lathe and set the bearing further into the wheel so I can use a proper dust seal?

Also what is the smallest sprocket that will fit on the DRZ400E with out modding the chain guard or a link to the chain guard mod would be nice ?

Any help would be greatly appreciated.

Thanks

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No dust seals on my XR650L front or rear.

Just need to keep a close eye on them and keep them clean.

So far 3000 miles and no problems.

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If you have the ability to do it so you can run the seals that would be the way to go. If not you will have to watch them close as you might get a little water or dust in them. I have a 37t rear sprocket on my 04 DRZ400S. I could not find anything any smaller. I run a 15 x 37 set up with 17" wheels. Not sure what that would do for the road with an 18" wheel.

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It is a Sprocket Specialist but it is a 38 not a 37 Part # 452 38. They don't have a 37.

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Thanks for your reply's guys. Ive opted for a 9mm bearing that will leave room for a seal the only thing was, I could only get a 30mm X 47mm x9mm so the wheel spacer from the bearing to the caliper is a top hat that presses into the bearing to bring the 30mm ID back down to 20mm.This also means I can never lose the spacer which is good.

Hoping to run a 15 x 39T set up with a 150/70/17 any ideas on what my cruse or top end speed would be?

Just need to prep them up for a couple coats of epoxy paint, get the rubber fitted and wait for the snow to stop.

Thanks.

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