Read the whole dyno curve

Look at the RPM you actually use

Find the horizontal RPM axis, then identify which scale belongs to horsepower and which belongs to torque. Compare the curves at the same RPM. A build can gain a few horsepower near the top and change how it feels in the middle much more.

Horsepower is calculated from torque and engine speed. With torque in lb-ft, horsepower is torque × RPM ÷ 5,252. At 4,000 RPM, 100 lb-ft is about 76 hp. The curves only visibly cross near 5,252 RPM when both use the same numeric scale and those units.

Compare like with like

• Use the same bike, dyno, test gear, and comparable engine and tire conditions when possible.
• Check correction standard and smoothing before overlaying two runs. Different settings can make the same run appear different.
• Check whether the chart shows rear-wheel output or an engine estimate. Keep measured and estimated values labeled.
• Look at several repeatable pulls before treating a small difference as a real gain.

Tell other riders what changed

Share the full chart with RPM, units, and correction visible. List the hardware and calibration for both runs. Point out where the curves separate and where they come back together. That tells riders more than two peak numbers alone.