MotoWild is a technical resource for motorcycle mechanics and for riders who work on their own bikes. At its centre is the MotoWild Lab: engineering calculators for engines, gearing, tyres, chassis, brakes and electrics, each showing the formula and working it through with your own numbers, in imperial or metric.
Around the Lab we keep technical data for the bikes we cover: specs by version from named sources, model-year changes and stock tyre sizes. We started with a simple frustration: you search for a number, find ten answers, and none of them show where it came from.
Bikes we cover
Bike data covers eight 2026 Harley-Davidson cruisers, from the Street Bob to the Low Rider ST, with gear ratios, road speed in every gear and calculators that open with each bike’s numbers. It also covers seven mid-size adventure bikes: the KTM 390 Adventure, the Yamaha Ténéré 700, the CFMoto 450MT, the CFMoto 800MT, the Voge 525DSX, the Kove 800X and the Benelli TRK 502X. Generation changes and different names in different markets make their figures hard to pin down, which is why every number links to its source. The Honda Transalp is next.
How we work
- The working is shown. Every calculator prints its formula and works it through with your numbers, so you can check it by hand.
- Tested twice. Each formula is implemented twice, once in the site’s engine and once independently, and both must agree before it goes live.
- Model years, not model names. Bikes change between generations, so specs and tyre sizes are recorded by version and model year.
- Sources on every page. Calculators name the textbook or standard behind them; bike data and articles link to the pages we used.
- No invented numbers. If a maker does not publish a figure, we write “not stated” or ask you to enter your own. We do not publish star ratings we cannot back up.
What we are not
We are not a shop and we do not sell anything. We are not affiliated with KTM, Yamaha, CFMoto, Voge, Kove, Benelli or any other maker. Calculators give engineering estimates: for safety-critical work such as brakes, suspension and fastener torque, your service manual’s figures come first.
How the site is funded
MotoWild is independent and self-funded. We do not sell anything and we do not earn commission on the links on this site. Read our editorial policy.
Get in touch
Spotted an error, or need a calculator we do not have yet? We want to hear it. Contact us and we will check and update the page.