Posts By: Phil

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 »

Pride

Cerys improved her 10 mile PB from 37.42 to 36.00 last night; an improvement of more than 6% (and 10% on her immediately preceding effort). Also impressive was how she did it: she thought my pacing plan made sense and tried to execute it. Here is her ride last night as a comparison table: Down Up… Read more »

Disappointment

Couldn’t ride tonight’s 10 mile TT to test my pacing theory myself because of this: Cerys was able to ride, worked to the same theory, and set a massive PB.

Wax On

So I’m trying candle wax as a bike chain lubricant. It’s not as random as it sounds: paraffin wax has been used by cyclists for many decades and usually outperforms everything else when tested, and I’m fairly sure the candle wax I have is mostly paraffin. Waxing the chain requires you remove it from the bike, which I had to… Read more »

Feeling the Force

I just acquired and fitted an SRAM Force 22 front mech to replace the Rival 10-speed mech I have had since buying the bike. It works well with my existing 10-speed Rival shifter, crankset, chainrings and 10-speed Dura-Ace chain. The difference in shifting is night-and-day.

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 »

Myth Busted

Many say that if you use an high quality “open tubular” clincher tyre and a latex inner tube on a wide clincher rim you get equivalent ride quality to a tubular tyre. I tried it; it is in no way equivalent.

Speed for Sale

You can’t buy fitness; if anyone offers to sell it to you it’s probably time to call WADA. But as a cyclist you can legally buy performance in other ways: when you are cycling your speed is that at which the propulsion force you generate is equal and opposite to the forces opposing your motion. These forces are many and… Read more »