Category Archive

Below you'll find a list of all posts that have been categorized as “Equipment”

Aero testing at Welwyn 2019

Rob Aero Tips, Equipment, News, Venue

I wanted to compare the CdA of my current “tall and narrow” position to the low position that I used in the 2014 season, to see if it would be worthwhile doing another six months, over the winter, re-adapting to a low riding position.

Uvex Race 8 versus Met Drone

Rob Aero Tips, Equipment

I hadn’t had the opportunity to test the Met Drone against the Race 8 until recently. I did one set of tests before our club circuit TT last Wednesday and another set of tests today. The results were consistent within the margin of error.

Pinarello Winter set-up

Rob Equipment

My focus in the winter months is on training and preparation for the next season. Most of my training is highly structured workouts on the turbo, however, I do get out and do some real world riding occasionally, and this is the bike I am using at the moment ……

Measuring saddle positions

Rob Equipment, News

The standard method is to measure height from the ground and off-set of the saddle nose from the centre line of the bottom bracket. This works well on a single bike but is not ideal when trying to replicate the back-end geometry between different bikes. Here’s an alternative method that I use …..

Options for the front end

Rob Aero Tips, Equipment

If you go to an event and observe the riders on time trial machines you will see a wide range of front end positions. Getting the most efficient position for both aero performance and power production is the Holy Grail. In this post I attempt to give some structure to the process of finding that position ….

Test session at Newport Velodrome 28th February 2018

Rob Aero Tips, Equipment, Venue

I book a three hour slot at Newport Velodrome once or twice a year, and use the data to validate my “open field” test results and to refine options. In this session I was benchmarking a 54 P3 with a new configuration of bars and wheels. In parallel I tested some shoe and helmet combinations.

Michelin latex tube

Wheel and tyre comparisons

Rob Equipment

Some pretty basic wheel and tyre comparisons – I’m limited by the availability of wheels and testing equipment, but …..

KCNC Jockey Wheels

Drive Train Options

Rob Equipment

I guess we’ve all heard of drive train losses and drive train efficiency. There was a blog post on “keeping it clean” 13th October 2016. I’ve talked to a few people since then, and picked up some interesting tips.

Composite picture

GPS speed or dedicated speed sensor?

Rob Equipment

What we need when aero testing is reliable speed and power data. A speed sensor working properly will be more repeatable than speed derived from GPS data. The speed and distance recorded will also be more accurate if the wheel circumference is set-up correctly.