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Boardman Wind Tunnel Experience

Rob Aero Tips, News

Having done extensive “Open Area Testing” at multiple venues, and cross-calibrated them, I’ve always wanted to validate my field-testing results directly with results from a wind tunnel session. The Wind Tunnel at the Boardman Performance Centre has made this more affordable, so I booked a session.

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.

The latest avatar is better

Zwift Workout files

Rob News

If you are doing high end intervals ERG mode isn’t always what you need. There is a way to disable ERG mode in Zwift without having Zwift change the turbo resistance if the terrain changes e.g. the incline changes or you ride over a bit of “feature landscape” like a wooden bridge section. It does mean manually creating a .zwo …

Two venues

Cross-calibrating test venues

Rob Aero Tips

I find it quite useful to have some idea of what my wind tunnel numbers might be. One way to do this is to cross-calibrate test venues with a trace back to a wind tunnel result.

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.

Find the wires

Cervelo P3 TriRig upgrade………….

Rob Uncategorised

Upgrade of a Cervelo P3 with TriRig Alpha X base bar and riser kit, with the extension clamp tilt option, fully installed with Di2 extension shifters and Di2 brake lever shifters. No more difficult to install than any other aero base bar I’ve experienced.