Posts Tagged: time trial

MTB Pacing Analysis

Just for fun, let’s look at my pacing segments on the mountain bike: Down Up Delta Total Time Power Time Power Time Power Time Power 4.00 332 4.15 282 0.15 -50 8.15 306 4.10 304 4.14 298 0.04 -6 8.24 301 4.04 314 4.09 308 0.05 -6 8.13 311 4.05 334 – – – –… Read more »

Not Marginal – Vast Gains

I decided to try and quantify the speed difference between mountain bike and road bike. TLDR; the road bike is approximately 13% faster (equivalently the mountain bike is 15% slower). If you are commuting, buy a cyclocross bike.

Better performance, worse time

It’s Wednesday, so last night was time trial night as usual. Here are my down and up splits in the format we’ve seen before: Down Up Delta Total Time Power Time Power Time Power Time Power 3.45 176 3.40 249 -0.05 +73 7.25 212 3.56 168 3.46 244 -0.10 +78 7.42 205 3.34 220 3.39 245 0.05 +25… Read more »

Profile Design Fast Forward Seat Post

This seat post is described by its manufacturer, Profile Design, as follows: The Fast Forward Aluminum is a triathlon and time trial specific seatpost that, when used with a standard road geometry frame, allows the rider to obtain a position commonly found with steeper seat-tube angled triathlon and time trial bikes. This is pretty-much exactly what it… Read more »

25 Miles is a Different Experience

This week’s time trial at RAF Weston on the Green was a little different to usual: the main event was over 25 miles instead of just 10. Here is the record of my 25 mile ride on Strava: Official timekeeping clocked me at 1 hour 15 minutes 57 seconds. Read on for some thoughts on pacing.

Masses of Wheels

I felt it was important to know how heavy my various sets of wheels actually are: I have a set of low-drag high-mass wheels and a set of high-drag low-mass wheels, and quantifying what all those various ‘high’ and ‘low’ terms are is at least interesting and hopefully useful. Where Hub Skewer Rim Tyre Tube Mass (kg) Drag (N)… Read more »

Flo 30 Rims

Yesterday evening Cerys and I used the new aerodynamic wheels I built in a 10 mile individual time trial for the first time. Now therefore seems a good time to draw some conclusions. In summary, Flo Cycling have done an excellent job of the aerodynamics with the Flo 30: the bike stability is a massive improvement over… Read more »

10 Mile ITT PB (again)

Yesterday Cerys and I took to the black stuff for a 10 mile individual time trial; my second, her first. The event was hosted by Bicester Millennium Cycle Club at RAF Weston-on-the-Green. I rode a 29.24 (averaging 32.84 km/h) and Cerys stopped the clock at 37.42 (averaging 25.61 km/h).

10 Mile ITT PB

So I’ve improved my 10-mile individual time trial personal best to 32:44. This is an enormous improvement on my previous PB of DNS (did not start, or more accurately did not consider entering).