What I'm Testing Lately

The messy blip box is on my Cervelo.

The Ventum is nice and clean.

I will replace with wireless blips. That will bring me 0.0001 closer to 0.165

0.164 if you hold your breath :slight_smile: and with the penis helmet of course

Jeroen

With these, and wireless blips on the extensions, do you need any sort of blipbox?

Funny, I went from a P-Series to a Speed Concept and much prefer the Speed Concept. I replaced the stock extensions with the Sync Aerobar Two while my old P-Series had a Vision Metron basebar and Aerocoach extensions. The P-Series is great but required more tweaking to get everything integrated and hidden.

Did you have the PSeries that had the front brake hose exposed ?

When I first looked at the PSeries you had to do all kinds of hacks to hide it

To be honest, with this bar, it’s going to be pretty clean.

My attraction to the PSeries was value. I love the SC but no way it made sense from a price/performance perspective.

I did, but I was able to route it through the fork and stem via an FSA compression plug. The Metron base bar had juuust enough room for the hydraulic hose to bend towards the brake lever.

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You do not

Only thing you miss out on is real time derailleur adjustment, you have to use the app instead

Plus the batteries in the blips are non-replaceable, so when they die, you need to buy a fresh set

I’m a gear reviewer and here’s some of my favorite tri (adjacent) things I’ve been testing.

POC Procen Aero Helmet: I’ve got a couple of aero helmets that I’m currently testing and this by far has the most ventilation. If I’m doing a hot race, I usually skip the aero helmet b/c my head gets too hot. The visor on the POC helmet pops out 10mm, and along with the 3 very large front holes above the visor, you get a nice breeze going through there.

Speedland RX:FPY road shoe: Rappstar reviewed this for ST a few months ago. I also got a pair to review and they’ve quickly become my FAVORITE road shoe. There’s a nice amount of cushion to these, a VERY aggressive rocker, and a removable carbon plate. With most carbon shoes, my feet/ankles/achilles have a hard time, but I don’t have any issues with this shoe. The rocker on the shoes make it super easy to get a high turn over + propulsion. I’m running 15 sec/mile faster than I deserve to with these shoes.

Norda 005 Trail Shoes: I got ~8 trail shoes last winter/spring and these ended up being my favorite. Good cushion, no carbon but a snappy midsole foam, good tread and they’re crazy light.

Is that the road or TT version ? I tested the TT version and it was not great from an aero perspective. But I hear the road version is almost as good as the TT and is breezy.

We have started measuring temperature inside helmets this summer, but not sure how to use the data.

Maybe I need to test the road Procen vs the Evade 3 we used.

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I got the Road. Procen Road Cycling Helmet in Uranium Black Matt | POC United States

My review: https://engearment.com/gear-review/poc-procen-road-cycling-helmet-review/

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Fasttt makes a bracket for a BTA riser. I have a couple BTA risers that a printer made extra of (they aren’t perfect but work, ~150mm height)

Is this a fair gunfight ?

A DTSwiss Arc1100 DiCut2 vs a Zipp 808.

I want to try two different tires, head to head same day and I have one set of each wheels. I could run a set of tests and swap tires…

Since Ryan was nice enough make this thread, maybe I can contribute to it.

As part of helping a friend prep for IM Canada we tested a pile of stuff. This are not formal “marketing tests”, they were to help a buddy and do something fun.

This is the stuff we tested

Bike : New Ventum Tempus
Helmets : Evade vs Rudy wing
Tires : 5000 TT vs Corsa pro speed vs 5000S vs Corsa Pro 28/30
Wheels : Zipp 808 vs DT Swiss 60 and Disc wheels
Suits : new tri suit
Vibration : impact of vibration on bad roads and optimal tire pressure
BTA : that is today :slight_smile:
Cockpits : next week after IM

All tests done at IM speed. Many decisions will not be based on pure performance, he puts cooling and comfort ahead of everything. I know, I know…but that’s why he is not on ST :slight_smile:

I’ll try to flush out some more detail, but if something is of interest I’ll do it first.

3 days before IM Canada. He is on his way up here to put the final bits and pieces together.

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Why no shoes, socks and rear hydration set ups? Surely cockpit and BTA go together?

Cockpit testing is actually on my bike and after IM. I got a new Profile Design bar and plan to clean up the front end. I will migrate to the same bar as the Ventum. Then I will borrow the Ventum for a few weeks and benchmark it.

Glenn is on the Tempus with the ASC Pro. Getting a BTA to work was a struggle. We couldn’t find a good BTA for it, but the guys from @culpritbicycles and @Tripro saved his Canadian Bacon. This thing is UBER configurable.

Shoes, he has 2 options, it was sooooo close, he has to choose between comfort and time to put on. He will wear his Rule28 placebo socks that provide no benefit to him.

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@Cajer asked this elsewhere so I figured bring it here

slowman once posted this : “over the winter the UAE team stuck the pill-shaped suppositories up their asses and over repeated rides found that they could save significant olivia newton johns through the use of wider tires”.

So we needed a unit called a ONJ (Olivia Newton John). For the geeks it’s just the standard deviation of Z axis. We have several IMUs this is just one.

Here are 9 runs. The first three are done on a good road at 5bar.

Then I go over to a really bad section and do 3 runs at 5 bar, 4.5 and 4.0.
Then I repeat that (5, 4.5, 4.0)

I should not be using CDA for these bars, I should probably use CRR watts, but anyways, smaller is faster. We see the bars shrink as pressure drops

What about ONJ ? Here I overlay the ONJ data

Obviously more bumpy

If I average the ONJs over the out and backs, they you see the pink lines
The Back is higher than the out because the roads are rougher. We see the ONJs going down with pressure, although there is a certain amount of I don’t ride the exact line every test.

There is far better data than ONJs but plots in the frequency domain do not give you the same “what did that suppository feel like”

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Wheels tested.
Final decision = DT Swiss front, Premier disc.

Thanks for sharing!

It would be really interesting to get some more info on accel mounting methods/locations, info in frequency domain (would be interesting to see both how repeatable the data is and which frequencies tire pressures damp out). If you’re willing to share the raw data with me, I’d be happy to spit out some power spectral density plots.

Why not the Premier front? Too deep for crosswinds?

the DT was marginally faster. From a $/watt perspective the Premier easily wins, but having both, wth a very slight performance and maybe a bit better handling in crosswinds he went with the 60mm wheel, I use the 88 for TTs

The zipp was slowest, about 3w slower than DT for the pair