Yamaha WR250R Mega Thread

[BlueLghtning]

Originally Posted by ba_

I have both sizes of the MT21 front (don't ask):

80/90P-21
90/90R-21

I assume both will work on our bikes.

What will be the differences? Which one would you mount up?

Stock is 80/100-21 so the 80/90 tire is the same width, but not as tall. the 90/90 is a bit wider then stock and 1mm taller.

Of the two you listed, the sizes reflect about 10mm wider and 9mm taller between them, but that probably isn't real world effect. The 90/90 is closest to the height of the stock tire. 80/90 might be good for someone that is height challenged and is riding a lowered bike.

80/90 = 80mm wide and 72mm tall
90/90 = 90mm wide and 81mm tall
80/100 = 80mm wide and 80mm tall

I think I'd go with the 90/90-21.

[ba_]

Originally Posted by BlueLghtning

Stock is 80/100-21 so the 80/90 tire is the same width, but not as tall. the 90/90 is a bit wider then stock and 1mm taller.

Of the two you listed, the sizes reflect about 10mm wider and 9mm taller between them, but that probably isn't real world effect. The 90/90 is closest to the height of the stock tire. 80/90 might be good for someone that is height challenged and is riding a lowered bike.

80/90 = 80mm wide and 72mm tall
90/90 = 90mm wide and 81mm tall
80/100 = 80mm wide and 80mm tall

I think I'd go with the 90/90-21.

Thank you.

I always forget about the second number being the cross sectional height expressed as a percentage of the width.

[MeefZah]

Originally Posted by rideonjon

i've just blown the disc side fork seal for the second time,the bike has 5200km's and the last seal let go at about 4000.any one have problems with their seals leaking?
cheers,
jon

Oh yeah, I'm on #3 brake side.

Seems prevalent with '08s.

[Attico]

Travis at go race sells a set of seals that work better than oem or oem replacements. They're made by SKF. But you guys should check your forks and maybe get some air bleeders?

Originally Posted by MeefZah

Oh yeah, I'm on #3 brake side.

Seems prevalent with '08s.

[MeefZah]

Originally Posted by Attico

Travis at go race sells a set of seals that work better than oem or oem replacements. They're made by SKF. But you guys should check your forks and maybe get some air bleeders?

Its an issue with the way the fork guard mounts up, and flexes into the fork. Thats why the X guards are sometimes swapped onto the R (also the sweet black color), they are harder and slightly differently configured and aren't as prone to rubbing the outer part of the seal.

Yamaha apparently fixed the problem in subsequent years but never aknowledged there actually was a problem.

[Chivvalry]

Originally Posted by MeefZah

Oh yeah, I'm on #3 brake side.

Seems prevalent with '08s.

How prevalent on the '08s? 1 in 10 or 9 in 10?

[debaisley]

Originally Posted by MeefZah

Its an issue with the way the fork guard mounts up, and flexes into the fork. Thats why the X guards are sometimes swapped onto the R (also the sweet black color), they are harder and slightly differently configured and aren't as prone to rubbing the outer part of the seal.

Yamaha apparently fixed the problem in subsequent years but never aknowledged there actually was a problem.

how could a rubbing fork guard do anything to the fork seals ? at most it could damage the outside edge of the dust seal

[ba_]

Anyone using a sidestand foot or something else creative (a nicely shaped rock) to get the bike to not lean so far the left when parked/camping/etc?

[Jäger]

Originally Posted by ggemelos

I was looking at getting a Wolfman tank bag and was wondering if anyone has feedback on fitting the larger tanks bags on the WRR. In particular, I am thinking of the Large Expedition of the Explorer Lite. I searched and found a few posts of people with the explorer lite, but no pics. Do these bags fit on the bike? Any first hand experience or pics would be appreciated.

Not near the bike to be able to take some closeup pics for you, so here's the best I can do retrieved from previous posts:









Experiences with the Lite? I like it, but it's not perfect. It is big enough to carry my DSLR, an extra lense, a small binocular, battery charger for recharging AA's on the go, a few tools that aren't in the front fender bag or tool kit, and a couple of soakers along with a SAM splint wrapped around the interior walls.

The negatives are you have to unbuckle one corner every time you need to fuel up. A perpetual minor annoyance, but not a big deal as it only takes a few seconds to do. It does make me think about the Fandango now and again...

Perhaps the greatest issue is that it is in your way somewhat when you're standing on the pegs and trying to get well forward. If it is not packed to bulging (as mine often is), your thighs will just push the bag forward and out of the way. But if you are riding your bike aggressively, you may find that the Lite is not for you.

The sewing on the two zippers has started to pull out on mine after three long years of use. I will be sending Wolfman pictures of that shortly and asking if they warranty the stitching or consider that to be eventual wear and tear results.

Unless something new has popped up this year, I'd probably buy another one. But then again, I might order a Fandango from Atomic Moto first, just to compare the volume they each hold and how the Fandango fits in comparison.

[shep546]

Originally Posted by ba_

Anyone using a sidestand foot or something else creative (a nicely shaped rock) to get the bike to not lean so far the left when parked/camping/etc?

may I ask what for?

[ba_]

Originally Posted by shep546

may I ask what for?

Of course!

It's a lot easier to load the bike (saddle bags, bag on top rack) if the bike is level than it's normal far left lean.

I'll most likely just find a rock or a piece of wood to put under there

[ArmyJoe]

Originally Posted by ba_

Of course!

It's a lot easier to load the bike (saddle bags, bag on top rack) if the bike is level than it's normal far left lean.

I'll most likely just find a rock or a piece of wood to put under there

A center stand would be better.

[ba_]

Originally Posted by ArmyJoe

A center stand would be better.

I agree but I don't want to add one to this bike

[shep546]

Originally Posted by ba_

Of course!

It's a lot easier to load the bike (saddle bags, bag on top rack) if the bike is level than it's normal far left lean.

I'll most likely just find a rock or a piece of wood to put under there

Ahh makes sense... I'm inexperienced with luggage on my bike

[AZ TOM]

Originally Posted by ba_

Anyone using a sidestand foot or something else creative (a nicely shaped rock) to get the bike to not lean so far the left when parked/camping/etc?

Large fender washer either welded or bolted to the borrom works well.