Category: Bicycle
Specialized tire testing II
In search of the holy rubber…
Following up on earlier tire testing in Stellenbosch*, Specialized’s tire whiz guys came up with 5 new prototypes to test. The goal is to make a tire that is very puncture resistant, but still rolls well and doesnt weigh as much as a tractor tire.
*Read earlier blog Tire testing Stellenbosch.
We know we have great tread patterns in the Fast Trak LK and The Captain, its a matter of making a strong, light, flexible casing. With an emphisis on STRONG.
Yesterday we tested rolling resistance of the 5 prototypes and also a few competitors’ tires. First I rode the rollers with a Power Tap and took Wattage outputs at 25km/h and 35km/h. Some tires needed 560 Watts to go 35km/h, and with the cold legs, the unfamiliar rollers, and keeping the speed at exactly 35 at 1500m altitude took some huffing and puffing!
29er Mania… Found this XTERRA South Africa (Grabouw) pic of beloved Specialized Stumpjumper 29er
If you dont know it yet, I LOVE 29ers! (29er = Big wheels)
– Handles rocky, sandy, bumpy terrain better than 26inch.
-Larger contact patch= better traction.
– More comfortable.
– Better rolling.
– Keeps momentum.
Sure, the bike weighs a bit more, but we’re* working on it…
My dad, (also 6ft3) has this saying- “A good tall man will always be better than a good small man.”
I feel the same about bike wheels. And I agree with my dads saying, of course.
My dad is a beast! My friends dont call him “Tarzan” for no reason…
For those who dont read Afrikaans so well- shame on you! Just kidding. It says here: Gert Stoltz won the Grand Masters (60+) agegroup at the recent 40km Sabie Classic mountain bike race. He beat the 2nd placed guy by 6 minutes!
Obviously he rides the fastest bike out there, (one of my old S works Specialized Epics) but mostly his amazing performance comes from some serious genes. I think I got the diluted version, because my dad only trains on Saturdays, and I have to train a full 6 days a week to win.
If I could just get him to do an XTERRA, but he says swimming is for frogs and running is for criminals…
Specialized tire testing camp in Stellenbosch
Burry Stander doing rolling resistance testing on the rollers. He rode at 25km/h and at 35km/h with about 20 different tires and measured the wattage needed to hold those speeds for each tire. On the right (reading the power tap numbers) is Benno Willeit, our Specialized mechanic, and on the left is Tire Specialist Frank Stacey.
Secret Trail riding. Grabouw, South Africa.
The climb was brutal, but once we disappeared into the clouds and the trail leveled out, it was as if we were in heaven. Trail riding heaven that is! The trails were tricky, rocky and scary at times.
