A 13-person start up in Des Moines, Iowa, claims that it now makes the fastest bike in the world.
“We don’t just say it, we actually proved it,” Ethan Davidson, chief operating officer of bike manufacturer Rüster Sports, told media reports. “We took [the bike] to a wind tunnel, and we were actually able to yield some data that proved that the bike was between 4 percent and 28 percent faster than any of our competitors.”
Aaron Ross, director of technology and biomechanics at Faster Speed Lab, the wind tunnel company where the bike was tested, confirmed the claim
and said that the bike yielded faster times and beat out competitor bikes.
Cyclist anecdotes back up Rüster Sports’ claims. Matt Zepeda, head coach of an endurance coaching company that trains triathletes, said that he’s seen triathletes competing in half “Iron mans” – competitions involving a gruelling 100 Km bike race, improve their performance by five minutes using the Dimond.
Tollakson’s old bike used an unconventional design called the beam frame bike, the same design the Dimond uses. This design allows engineers at Rüster Sports to smooth out the design and reduce weight.
The beam frame eliminates the seat tube, which runs down from the seat to the pedals, as well as the seat stay the part of the frame that connects the seat directly to the rear wheel.
By getting rid of these sections of the frame, the bike is lighter and smoother, reducing wind drag and making it more aerodynamic.
Dimond bikes are also made from carbon fibre, an extremely strong, lightweight material. Sheets of carbon fibre are layered on each other to make up individual parts, with the fibres running in different directions to make the part stronger.
The lightweight Dimond is engineered to be easily disassembled and Rüster makes a “bike pack,” the Hen House, which can carry the Dimond and is small enough to check onto a plane just like a standard suitcase. This saves a lot on oversized baggage fees.
The speed and versatility comes at a price, the Dimond starts at R75 390.00 just for the frame, going up to R164 700.00 for its “premium build” with all the bells and whistles.