AI Insights via local rules engine
Effort & pacing
NP 167W vs avg 150W (VI 1.12), IF 0.67, TSS 56.
WHYIF under ~0.75 is an endurance/recovery effort; VI near 1.0 means steady riding.
DOGood aerobic base ride — keep these easy days truly easy.
How your gears work — and how you used them
You ranged from 1.06 (easiest) to 4.8 (hardest) gear ratio, spent the most time in 48×13, and stayed in the big ring ~70% of the ride.
WHYGear ratio = front teeth ÷ rear teeth. Your hardest gear rolls about 33.1 ft per pedal stroke, your easiest about 7.3 ft. Shifting exists to hold a steady, comfortable cadence (~85–95 rpm) as speed and gradient change — spin easy gears uphill, push harder gears on flats and descents.
DOFor a flat coastal ride this is textbook: stay in the 48T big ring and just work the rear cassette (only 0 front shifts). Save the 35T small ring for real climbs.
Cross-chaining & shift habits
You cross-chained 15.4% of the ride (worth cleaning up) and shifted 0.0×/km (0 rear, 0 front).
WHYCross-chaining is when the chain runs at a steep diagonal — big ring + the biggest cogs, or small ring + the smallest cogs. It still works, but the angled chain adds friction (a few watts), wears the chain and cassette faster, and can rub the derailleur. Frequent rear shifting is healthy — it usually means you're keeping cadence smooth as the road changes.
DOWhen you're in the 48T ring on the biggest (33T) cogs, drop to the 35T ring instead — nearly the same gear, straighter chain. And anticipate: shift to an easier gear just before the road rises, while you still have momentum, so your cadence never crashes.
Terrain
20.9 mi, 1759 ft climbing; ~68% of the ride was flat/rolling.
WHYFlat coastal rides reward aero position and steady power more than gearing range.
DOOn days like this, hold an aero tuck and a smooth cadence to lift average speed.
Aerobic durability
Power:HR decoupling 6.5% — HR drifted up later in the ride.
WHYUsually heat, dehydration, or starting too hard.
DODrink earlier and ease the opening 15 minutes.
“Beautiful spot to ride. Easy miles like these build the engine.”