Wattology Europe

15/04/2026

Paris – Roubaix sparks discussions about tire widths every year. This time, an image of Pogacar’s bike went viral, revealing that the world champion’s bike is fitted with tires measuring 38.23 mm in width. But is this allowed under UCI regulations? Does the 38.23 mm width comply?
The UCI rules indirectly restrict tire width for road bikes by capping the overall wheel diameter at 700 mm with inflated tires. Given that rims have a standard diameter of 622 mm, the remaining space for tires amounts to 78 mm, which translates to 39 mm per side.
Since wider tires increase the overall height when inflated, this 700 mm wheel diameter limit effectively imposes a maximum tire width.
What exactly is this limit? It varies based on the tire and the internal width of the rim. There isn't a straightforward answer, but generally, most commercially available tires with a nominal width of 35 mm on typical rims will remain within this limit.
(Photo: UCI Regulations page screenshot)

13/04/2026

𝐍𝐄𝐖 𝐏𝐑𝐎𝐃𝐔𝐂𝐓!🚴‍♂️‼️
𝐄𝐧𝐬𝐮𝐫𝐞 𝐜𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞 𝐰𝐢𝐭𝐡 𝐔𝐂𝐈 𝐫𝐞𝐠𝐮𝐥𝐚𝐭𝐢𝐨𝐧𝐬
𝐨𝐫
𝐝𝐨𝐜𝐮𝐦𝐞𝐧𝐭 𝐲𝐨𝐮𝐫 𝐬𝐞𝐭𝐮𝐩 𝐟𝐨𝐫 𝐞𝐚𝐬𝐲 𝐫𝐞𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐥𝐚𝐭𝐞𝐫.
This kit allows you to measure your armrest angle, the length and height of your extension handlebar, and your saddle tilt angle.
Who this tool is designed for:
1. 𝐓𝐫𝐢𝐚𝐭𝐡𝐥𝐞𝐭𝐞𝐬 𝐚𝐧𝐝 𝐭𝐢𝐦𝐞 𝐭𝐫𝐢𝐚𝐥𝐢𝐬𝐭𝐬 competing in UCI-sanctioned events who want to verify that their bicycle cockpit setup adheres to UCI rules prior to competition.
2. 𝐓𝐫𝐢𝐚𝐭𝐡𝐥𝐞𝐭𝐞𝐬 𝐚𝐧𝐝 𝐭𝐢𝐦𝐞 𝐭𝐫𝐢𝐚𝐥𝐢𝐬𝐭𝐬 who have established an optimal cockpit setup but need to disassemble their bike for travel or maintenance and wish to accurately restore it afterward.
3. 𝐁𝐢𝐤𝐞 𝐟𝐢𝐭𝐭𝐞𝐫𝐬 aiming to record precise setups for their time trialist and triathlete clients.
Proudly developed by Cycling Côte d’Azur with the needs of triathletes and time trialists in mind.
Link in the comments

08/04/2026

COMING SOON
For triathletes and time trialists

07/04/2026

UCI technical regulation for time trial bikes summariezed in a simple form. All those you can adjust.
Cat 1: athlete is less than 180 cm tall.
Cat 3: athlete is 190 cm or taller
Cat 2: in between
Please note that you have to be registered at UCI if you want to use these categories.

08/03/2026

Cycling power numbers can fool you. Two rides may show the same ‼️𝘼𝙫𝙚𝙧𝙖𝙜𝙚 𝙋𝙤𝙬𝙚𝙧 (𝘼𝙋)‼️ yet feel completely different. Why? Because your body doesn’t experience effort as a simple average. Surges, climbs, attacks and sprints cost far more energy than steady riding.
That’s where ‼️𝙉𝙤𝙧𝙢𝙖𝙡𝙞𝙯𝙚𝙙 𝙋𝙤𝙬𝙚𝙧 (𝙉𝙋)‼️ comes in. It estimates the real physiological load by giving extra weight to those high-intensity efforts.
So if your ride shows a higher NP than AP, that’s not a mistake — it means you pushed the hard moments hard. And those moments are where fitness grows.👍💪

27/02/2026

Chains queuing for waxing. They are already perfectly cleaned 👌. A 20 minutes hot wax bath is waiting for them with agitating the chains in every 5 minutes to make sure the wax penetrates perfectly to the most inner parts. Shimano chains today, Sram chains on Monday.
The season is approaching fast, early birds have already placed ordered and decreased our stocks, so we have to get prepared. 🚴‍♀️🚴🚴‍♂️🏆

19/02/2026

If you happen to be in Nice, France with your road bike, you can check out this free service of Cycling Côte d'Azur

19/02/2026

18/02/2026

📧📩The email address of our webshop has changed. The new email address is:

12/02/2026

𝐋𝐞𝐬 𝐜𝐡𝐚î𝐧𝐞𝐬 𝐜𝐢𝐫é𝐞𝐬 𝐬𝐨𝐧𝐭 𝐩𝐫𝐨𝐩𝐫𝐞𝐬, 𝐬𝐢𝐥𝐞𝐧𝐜𝐢𝐞𝐮𝐬𝐞𝐬 𝐞𝐭 𝐨𝐟𝐟𝐫𝐞𝐧𝐭 𝐮𝐧𝐞 𝐟𝐫𝐢𝐜𝐭𝐢𝐨𝐧 𝐦𝐢𝐧𝐢𝐦𝐚𝐥𝐞. 💥
Pas besoin de préparer ta chaîne toi-même : on s’en charge. Tu peux simplement rouler. 🚴‍♀️🚴🚴‍♂️
Chaînes 𝐒𝐡𝐢𝐦𝐚𝐧𝐨, 𝐒𝐑𝐀𝐌 𝐞𝐭 𝐂𝐚𝐦𝐩𝐚𝐠𝐧𝐨𝐥𝐨 disponibles, compatibles avec les transmissions 11 et 12 vitesses.✅

06/02/2026

Waxed chains are 𝐜𝐥𝐞𝐚𝐧, 𝐬𝐢𝐥𝐞𝐧𝐭 𝐚𝐧𝐝 𝐥𝐨𝐰 𝐟𝐫𝐢𝐜𝐭𝐢𝐨𝐧.
Save yourself from the hassle of preparing your waxed chain. It is our job. Ride your bike instead.
We stock 𝐒𝐡𝐢𝐦𝐚𝐧𝐨, 𝐒𝐫𝐚𝐦, 𝐚𝐧𝐝 𝐂𝐚𝐦𝐩𝐚𝐠𝐧𝐨𝐥𝐨 chains compatible with 11 and 12-speed drivetrains.

05/02/2026