What is your cruising speed (Z2) compared to watts?

just kinda curious where everyone is at with speed etc when doing Zone 2 outside alone.

Bike: ~22 lbs (maybe 25lbs with lights / food / water) - Endurance Geometry. (non-aero round frame) GP-5000 35mm tires around 50psi. clean bike waxed chain.

me: 6’2” 196 lbs

roads fairly decent. mostly flat but some rollers…say <5% stopping due to traffic…mostly riding on the hoods but sometimes go to the drops or aero position. with summer-time clothing on.

at 200 watts (62% FTP) I go around 26 km/hour

at 215 (67% FTP) watts I wind up around 27km/hour

at 240 (75% FTP) watts I’m around 28.5 / hour

My typical Z2 ride falls around 170-180W (63-67% of FTP).

Bike Weight (kg) Tire (mm) Pressure (psi) Speed (km/h)
Gravel 78 57 35 27
Endurance 77 35 45 30
Aero 76 28 50 32
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So much of that depends on the bike.

On my daily commute, 20 mins long, Aluminium cheap as chips Scott Speedster Id average 24-25kph whilst deliberately putting in as little effort as is reasonable without being stupidly easy/slow.

A Z2/Z3 ride for 2-4 hours on my better bike, 29-32kph depending on conditions

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Sped is so much dependent upon road surface and wind

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Those speeds seem low to me, but I’m a way different body type! I’m 5’8 and weight 145 or so. I did a mix of gravel and pavement on saturday, and I’m riding a steel round tubed bike, with a full frame bag, 35mm AS GP5000, 40mm rims, and waxed chain.

On sections with flat to rolling terrain with good pavement , I was around 31.5 km/h for 180w. Wind was low, but this section of 9km was snipped both directions as the route was an out and back using this road.

Edit: I should note that I ride pretty aero as my baseline position.

With 9km section sample, specific conditions play much bigger role.

I am talking about weekly/monthly averages over 4-8h rides. In this case, various conditions (surfaces, weather, landscape) average out. Although, to be honest, I do live quite flat region, i.e. speed is typically within 1-2km/h from equivalent speed (as calculated by Sauce plugin on Strava)

A lot of variables but TR says my Z2 is 142-196w. In my last outside Z2 workout at the lower end of this (143w ave, 146w NP, 0.57 IF) I was get 18.6mph (29.9kph) on the road bike round the Connington Loop

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i know :((( I can’t do much about it. I can only get so aero cause of a bad hip…and i’m wide like a sailboat for a biker. and heavy! bad tri-fecta

I am gonna keep trying to raise my fitness

Gotcha, once to take improving your aero position out of the equation, clothing, helmet and tires would be your only meaningful things left.

Of course raising your fitness won’t hurt!

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I dont think your speeds are that indifferent really, or body type :slight_smile:

Im 5’6 @ 130lbs and given a bigger section of distance to look over, an easy/longish ride looks like:

I think as others have said, the environmental factors on every route will play a huge role in average speeds.

So to the OP, its like comparing apples to oranges

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Indoors 200 watts 0 km/h

Outdoors 0 watts 27km/h

Anyone know why?

You need to put your trainer on the stairs

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Indoors you go nowhere, outdoors you are going down a big hill?

3 hours on the drop:

102 km, 303m elevation → 205 W with 33,1km/h

My BMC Roadmachine is not an aero frame, and my DT wheels neither.

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