Review: Acerbis 12.5L fuel tank

Review Information
Name Acerbis 12.5 L tank for HONDA CRF 250 L-M 2017/2018
Part # 0022925.120.700
Price 250 GBP (purchased in UK)
URL Read specification on Acerbis website
Duration 653 days (1 year, 9 months, 13 days) since 08/06/2018—36,459 miles—still in use—duration paused because of pandemic since 21/03/2020
Countries Ridden uk france spain gibraltar morocco western-sahara mauritania senegal the-gambia guinea-bissau guinea côte-d'ivoire ghana togo benin nigeria cameroon gabon republic-of-congo angola democratic-republic-of-congo namibia south-africa lesotho eswatini mozambique zimbabwe zambia malawi tanzania rwanda uganda kenya ethiopia sudan

The stock fuel tank on the Honda CRF250L has a capacity of 7.8 L. This is too small to provide a sufficient range for long-distance travel when fuel can be scarce. For me, a larger fuel tank was a crucial modification for my round the world journey.

Spectacular scenery between Tocota and Gabela, Angola.
This is what the Acerbis fuel tank looks like when installed on the Honda CRF250L. The location is Angola.

The Acerbis fuel tank has a 12.5 L capacity. Economical riding can deliver a range of over 200 miles. Read my review of the Honda CRF250L for some measurements of my fuel economy.

The Acerbis fuel tank is tough! It's survived many drops at slow speed, one off at 35 mph in Mauritania onto loose gravel and rock, and a side impact from a vehicle in Senegal. I can't be certain that it took any direct hits, but it certainly survived.

If the tank is filled to the top and left in direct sunlight then the fuel expands and pushes fuel out the breather hose. Also, if the motorcycle is on its side (e.g., from a drop) then fuel can leak through the breather hose.

There is a choice between a black or natural (transparent) fuel tank. I choose natural because the reassurance from seeing the fuel level was appealing and it looked cool. In practical terms, this makes it slightly easier to refuel by observing the increasing level through the tank. Also, the transparency helps if cleaning the fuel tank is ever needed (read my guide on how to clean the fuel tank). The natural colour is now heavily stained on the outside—a yellow-brown colour—after about 35,000 miles.

It's easy to install.

The mounting instructions PDF, which can be downloaded from Acerbis' website (see link at top of page) says that the shape and size of each tank may vary by up to 7% because of uncontrolled variables in the manufacturing process. Mine secures well to the frame; however, a small amount of force is required to align the fairings to the tank.

The plastics around the radiator reserve do not match up with the hole at the top, so I used a zip tie. This doesn't affect how it performs; it just looks a bit rough and ready—like me ;)

I don't remember how but I lost the breather hose. I think I knocked it off whilst refuelling. I used a spare bit of hose with some fabric jammed in to prevent ingress of particles but enough to allow air flow to accommodate fuel expansion.

Securing the cap too tight is usually not a problem since I can unscrew it. I once secured it tightly in 20C then rode into 35-40C and the cap was extremely difficult to unscrew and remove.

Verdict

The Acerbis fuel tank enables long-distance travel and it's tough. For me, this is an essential modification to the Honda CRF250L.

Would I buy it again? Yes—perhaps in black.