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Dunlop D803 Trials Tire
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Delete all2002 YAMAHA YZ426F
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2.75x21 (Tube Type) Dunlop D803 Trials Tire
Fits: 2002 YAMAHA YZ426F
Part# 1142050001
Our price: $63.99
MSRP: $99.95 - You save $35.96 (36% off)
View Product DetailsSee all machines the Dunlop D803 Trials Tire fits.See stock sizes for your machine (Machine Specs)
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- The Dunlop D803 Trials tire was Geoff Aaron's 2005 AMA Trials championship tire.
- The rear D803 tire is a radial that works great for off-road trial riding.
- Engineered specifically to provide superior grip.
Dunlop D803 Trials Tire Reviews
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PNW trail killer
Wade in WA – Machine this part was bought for: 2004 KTM 300 EXC
Comments On Feb 26, 2013:Sweet in the Rocks and slick roots . Perfect for the technical single track I ride. Just a little FYI .When you seat the bead it takes a lot more air pressure then a knobbie .
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trials tire
SCOTT in NV – Machine this part was bought for: 2007 KTM 300 XC-W
Comments On Feb 08, 2013:its amazing how well this tire works. usually ride tough single with steep up and down with rocks. best traction ive ever had and last 2 times longer than typical knobbie. suffers at high speed braking and in the snow. otherwise, fantastic !
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Expectations dashed.
John in New Hampshire – Machine this part was bought for: 2002 YAMAHA WR426F
Comments On Dec 26, 2012:Purchased the D803 expecting to get a great tire and my hopes were dashed soon after my first ride when I got a flat almost imediately in spite of using a ultra heavy duty tube as instructed and running the proper pressure as instructed. In all fairness the tire does grip well in hard terrain and on leafy rooty rocky steep trails but it is not holding up well at all and is chunking off and losing knobs after only a limited amount of of riding time thus far.All of the knobs have cracks at the base and I do not think it will be long before having to replace the tire.Not at all what I was expecting and in my opinion it is not a good tire for a larger cc four stroke with their known additional torque .I would not reccomend this tire and will not be buying another one myself.In my 35 years of riding I have never had a tire fail so quickly.
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great grip
MATTHEW in MO – Machine this part was bought for: 2003 KTM 250 EXC
Comments On Dec 07, 2012:i have used this tire @ chadwick MO, the grip is great I am concerned about the wear tho. first time with this bike and a trial tire. it is a tall tire and has rubbed a lot on the mudflap. I do have lots more confidence on the rocks and did not see a disadvantage in some mud/soft dirt. I consider myself a novice trail rider.
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This tire is cheating!
ROBERT in NV
Comments On Jun 16, 2012:Installed on a 2004 WR450, I ride primarily in Northwestern NV. I can only rate this tire from a trail riding point of view and not a trials riding point of view. The tire does great on all the terrain that NV has to offer, IE: Lose dirt, hard pack, sand, and rocks. I do get a bit nervous in fast turns that require some lean angle as the tire is fairly square and dose not seem to have much side bite. The tire inspires confidence, as I began to notice the capabilities of the tire over my normal riding obstacles I began pushing my skills a bit further. Now I am constantly looking for obstacles that will test the tire and my abilities. The tire makes things so easy, I feel like I am cheating! Would recommend to a friend and will purchase again.
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Good tire
ISAAC in AZ
Comments On May 21, 2012:I have tried others, but have good consistent performance from this tire.
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D803 made me a believer in trials tires
Alex in NC
Comments On Apr 22, 2012:It took me a couple years of guys preacing to me about trials tires to try one. Now I understand. There are places where a brand new knobby would do better, but for longevity a knobby cannot touch this tire. I have 1 enduro, 3 hare scrambles, approx 10 trail rides through rocky NC trails and ST. and the tire only looks about 2/3 worn, and still grips about 80% as good as it did brand new! knobs are cracking at the base like everyone says but none have ripped off for me yet. I'm shooting for about 2 more races and 2 more trail rides with this tire. I swear I would've used 3 knobbies in this amount of time!
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Poor durability
MICHAEL in NC
Comments On Nov 26, 2011:This seems to be a recurring theme, the center knobs ripped off early on my tire. I thought the 520 torque and dual sporting was the cause but now it looks to be the tire is shite. Buy the Michelin, I have had one on a WR250F for over 2 years/150 hours with no knob breakage.
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1 of 1 people found this review helpful.
Excellent For Trail Riding and Harescramble Racing
Jay in NC
Comments On Nov 29, 2011:I have ridden and raced the Dunlop D803 on my KTM 300 XCW for a few years now. It is far and away the very best tire for general trail riding and harescramble racing.
I have abused the living daylights out of this tire and it has never failed me. It outlasts any knobby by a huge margin and easily out performs a knobby on trails or when Harescramble racing. There is no scenario I have encountered where a knobby performs better than a D803. Traction is vastly superior on almost every surface providing confidence to tackle the most technical trails.
I use a heavy duty or ultra heavy duty tube and I've never had a flat on the trail or when racing. The highest air pressure I will run is 8psi if I'm riding higher speed trails with lots of waterbreak jumps. Usually, I keep air pressure in the 7psi range but have run as low as 5psi in sloppy conditions. Running higher pressures in the D803 decreases performance in my experience.
Without exception...every rider I personally know who has spooned on a D803 can not believe how good this tire is on the trail compared to a knobby. They become nearly instant converts. Some have decided to mount a knobby after their D803 finally wears out only to remove it and spoon on a new D803...yes, they really are that much better than a knobby.
Finally...another nice benifit to the D803 is that it's kind to the trail itself. A D803 does not tear up the trail as much as a knobby since there is no need to spin the tire and dig into the soil surface to find traction. The softer compound and the large number of knobbs on the D803 actually "grab" onto the trail surface...no matter if it's roots, rocks, mud, sand, hardpack, etc...and drives you forward.
Seriously...if you want ultimate traction, super-long usable tire life, and you like easily passing your buddies as they struggle with their knobby-clad rides on some nasty technical trail section...the D803 is your ticket.
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Good, but wear too fast.
Josh in WA
Comments On Nov 13, 2009:I've been riding Knobbies all my life. These are amazing. I'm sold.
I could crawl up hills, with ease, that a knobby would've been spinning and not making it up. These tires also absorb small roots and rocks, taking the "hit" away, and allowing the bike to stay planted, and get even better traction.
A-mazing tire!
Buy one!
Additional Comments On Feb 23, 2010:I had to buy a WR rear wheel to have a trials tire, and the cost was worth the performance I'm getting. I still use a Dunlop MX51 on the track, but I can truly do things with the 803 Trials tire in the woods that I could never do with a standard knobby.
I'm expecting at least double or triple the life out of this tire, and will Surely buy another one. After 5 rides, the knobs are still in really good shape, even with a YZ250 and a heavy right hand. Strangely, all the knobs are slightly cracked at the base, but a buddy who has the Michelin Trials tire, and another buddy who has the Dunlop both have the exact cracking around the base of the knobs. They have a lot more rides on their tires, and NO knobs have ripped off, and no negative effects on traction for anyone.
Bottom line, Trials tires are Amazing.
Additional Comments On Sep 06, 2011:After going thru 2 of these (500-600 miles each), I still like them. But, as "Roger in NV" noted, both of them started tearing the center knobs off prematurely. Mine took 250+ miles to start tearing off. Both of my tires tore the knobs off at the same place - in the center, right where the seam/mold comes together. The side knobs didn't tear at all.
Several buddies run either Michelin or IRC and have never had knobs tear off. All variables were the same. So, I'm going to try a different brand this time around. I've heard the traction is about the same from brand to brand, so better durability wins.
That being said, I'd recommend this tire. Even with premature chunking, that's twice as many rides as I get with knobbies.
I highly recommend getting a trials tire for rocks, technical trials, pretty much anything except MX... they rock!
Additional Comments On Sep 06, 2011:After going thru 2 of these (500-600 miles each), I still like them. both of them started tearing the center knobs off prematurely. Mine took 250+ miles to start tearing off. Both of my tires tore the knobs off at the same place - in the center, right where the seam/mold comes together. The side knobs didn't tear at all.
Several buddies run either Michelin or IRC and have never had knobs tear off. All variables were the same. So, I'm going to try a different brand this time around. I've heard the traction is about the same from brand to brand, so better durability wins.
That being said, I'd recommend this tire. Even with premature chunking, that's twice as many rides as I get with knobbies.
I highly recommend getting a trials tire for rocks, technical trials, pretty much anything except MX... they rock!
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