Showing posts with label cycling news. Show all posts
Showing posts with label cycling news. Show all posts

Friday, July 19, 2024

Why was Pogacar so much faster than Pantani ripping his records by 3:30-?

Wheels of Happiness

An analysis by Cycling news

Pogacar and company broke Pantanis record in the 15th stage of TDF (Plateue de Belles):  in terms of wattage, time (3:30) and speed, running the last 5 km at 26 kph.   That meant also those behind him Jonas and Van der Poel broke the said record (also of other said stage champs like Armstrong etc.)

The reason was:  technology and about watts.   With the following, Pogi could have exerted 70 less watts:

1.  Aero bike -  aero bars and cable less frontal of the bike.   (My two bikes have aero bars and one does not have exposed cables)  While thisi would not work for slow climb, it certainly worked for the 26 + kph by Pogi at last 5 km

2.  Tire technology:   Pogi had 50mm at the back and 40 mm in front.  Tires were 32 (> 28 mm.  I have 28 mm in one of my bikes)  Before it was theorized that Pantani"s 21 mm tires were faster.  But now the theory is that most roads are not that smooth and wider tires absorb the mini shocks which slows down the bike.   

3.  Aero clothing -  the skin hugging jerseys and bibs were easily 7 watts.   Pantani wore loose flapping jerseys

Pogi also ran the climbs seated.  Vs Marco who ran out of saddle.   Pogi certainly saved a lot of energy sitting down

What do you think?  Or is simply because Pogi did a Pogacar.

 

Thursday, April 5, 2018

The new Shimano 105 R7000 up from 5800

Wheels of Happiness

Rizal Philippines
April 6, 2018



From Cycling Weekly News

Shimano launches 105 R7000 from Bike Radar

It was learned that 105 (and I agree) that 105 GS forms the bread and butter of bulk of Shimano users. It is reliable and affordable.  No wonder, it was the last model to be upgraded by Shimano

Shimano days ago announced the  launch of Shimano 105 R7000 moving the 105 closer to the more expensive cousin the Ultegra R$8000. We do not know yet the price.  But what are the key upgrades:

1.  The crank arm has been made wider - just like the crank arm of Ultegra RS8000.

Shimano 105 R7000 vs Shimano 105 R5800

2.  The hoods has been made smaller just like Ultegra

3.  Short shifts just like the Ultegra

4. RD to accommodate up to 34 cogs;

5.  Employment of shadow technology for the RD to keep this off harms way when crashing or falling.

We do not know yet the price.  But definitely it should be moving past P20k mark.  No more  14 - 15 k 105

Cycling news estimate the GS total price to be 505 British pounds or P35,000. (halos bumped price ng RS 8000?


Saturday, August 30, 2014

11 tools you need to maintain your bike - from Cycling News

Wheels of Happiness

Rizal  Philippines   |  August 30, 2014

From cycling news - bike tools

There are 11 tools you need you need to maintain your bike.  I have only  9  .  I do not have the torque wrench and the top of the line cable cutter.     I was able to buy all the tools as one set from Villamayor bike shop for only P1,400.00. It was made in Taiwan though.