Yamaha’s WR250R is a great small-displacement dual sport in stock form, but with a few key accessories, it can be made into one of the most versatile ADV bikes around.

We used plenty of aftermarket items on our WR250R adventure bike build, but only a handful stood out from the rest and became our must-have WR250R ADV mods. We’re going to break these mods down, explain what makes them so important, and tell you why each works so well on a WR250R that’s set up for adventure riding.

If you want the mods from this article, plus a few extra, you can see all of them here.

Lower Gearing

In stock form, the WR’s gearing is good for playing in the dirt and commuting on surface streets. If you’re looking to log a large amount of highway miles and ride aggressively off road, the stock gearing will need tweaking. Yamaha ships the WR with a 13-tooth sprocket in the front and 43 in the rear for a gear ratio that’s about 3.3.

yamaha wr250r chain eating into the swingarm
An example of what happens when the chain eats into the swingarm.

That leaves the gearing a little too tall when it comes to steep grades, and it gives the chain enough slack that it can actually begin wearing into the swingarm when the suspension is compressed enough. Both issues are fixed by changing sprockets. We switched to a 14-tooth sprocket up front and a 49 tooth in the rear which gave us a 3.5 gear ratio. The result is slightly shorter gearing—great for heading uphill and into the wind without needing to downshift—and more clearance between the chain and swingarm.

Oversized Fuel Tank

Oversized fuel tanks are a common recommendation for most dual-sport and adventure bikes, but we think they’re especially important for the WR250R. The WR comes with a 2-gallon tank from the factory, and while that works for commuting and the occasional trail ride, 2 gallons is just not enough for any real kind of adventure riding.

wr250r oversized fuel tank

We like the IMS 4.7 gallon fuel tank on the WR for a few reasons. Firstly, it more than doubles the fuel capacity and drastically increases the bike’s range up into the two hundreds. Secondly, the IMS tank comes with an internal fuel pump that feeds from the two lowest points inside the tank—making it possible to use every last drop of fuel and literally suck the tank dry.

Stiffer Springs

The stock WR250R is a light bike with suspension that’s set up for comfort. If you strap some luggage to the WR and take it off road, you’ll find out (like we did) that the stock springs can’t handle the extra weight or demanding off-road terrain.

yamaha wr250r adventure bike

We fixed the problem by picking up some stiffer springs from Race Tech for both the front and rear. There are different spring rates available, but if you add up the weight of the rider, luggage, and gear, it’s easy to find the springs that’ll work best for you. With the new springs installed, the WR250R handles heavy luggage without sagging excessively, avoids bottoming out on tough terrain, and still provides a comfortable ride.

Bars and Clamps

This mod may depend on your personal preference and/or body measurements, but for us, the WR’s stock bar setup was too low to be comfortable while standing up and pretty awkward feeling overall. To sort it out, we took the stock bars off, bolted up a set of big bar adapters, and paired them with a 1 1/8 inch Tusk Chub Big Bar.

yamaha wr250r adventure bike

The adapters brought the bars up to a comfortable height—important for clearing an oversized tank and tank bag—and the YZ bend of the bars moved the controls rearward for a more natural riding position. With both adapters and bars, the ergonomics of the WR felt much better standing up. It’s also worth noting that if you want the most comfort whether sitting or standing, an aftermarket seat may be worth picking up. We went with a Seat Concepts seat, which made it surprisingly easy to knock out several consecutive days of riding on the WR.

Top Rack

There’s no shortage of luggage options for the WR250R when you consider tank bags, fender packs, saddle bags, etc. We think the Tusk Top Rack is a must-have for the WR250R simply because it gives access to otherwise unused space and opens the bike up to new luggage options.

tusk top rack yamaha wr250r adventure motorcycle

Tusk makes these top racks specifically for the WR—which means no poorly fitting universal parts—and works several attachment points into the rack’s design. That gives you the option of keeping it simple and strapping down a duffle bag or mounting a top case for more permanent storage. This top rack is especially convenient because it doesn’t add any width to the bike, making it great for squeezing through tight obstacles, terrain, or traffic.

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Tell Us What You Think

That’s it for our take on the five best adventure mods for the WR250R. Have a WR250R of your own? Know of a crucial mod that was noticeably absent from our list? Let us know about it and tell us what you think in the comments below.

If you like these mods but want to see even more, check out our WR250R bike build.

wr250r adventure bike