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ETRTO sizes apply to rims and tyres for vehicles of all types, including bicycles. The great advantage of ETRTO sizing is that it is unambiguous; previously, nominal dimensions were used which were interpreted in different ways by different countries and manufacturers - a problem for the end user.
Brown maintained Sheldon Brown's Bicycle Technical Info, a web site highlighting a broad range of cycling subjects ranging from how to fix a bicycle flat tire to details on Raleigh and English three-speed bicycles, [9] Sturmey-Archer hubs, [10] tandems, [11] and fixed-gear bicycles. [12] He repaired cameras and was an amateur photographer.
Magura hydraulic rim brake. Hydraulic rim brakes are one of the least common types of brakes. They are mounted either on the same pivot points used for cantilever and linear-pull brakes or they can be mounted on four-bolt brake mounts found on many trials frames. They were available on some high-end mountain bikes in the early 1990s, but ...
Skirt guard or coatguard: a device fitted over the rear wheel of a bicycle to prevent a long skirt, coat or other trailing clothes or luggage from catching in the wheel, or in the gap between the rim and the brakes; Spindle: an axle around which a pedal rotates; threaded at one end to screw into crank arms; Spoke: connects wheel rim to hub ...
The 'diamond' frame's central, horizontal top bar forces the rider to swing a leg over the bicycle's seat. A Triumph step-through, ladies', or open frame Dursley Pedersen bicycle circa 1910 A penny-farthing photographed in the Škoda Auto Museum in the Czech Republic A Brompton folding bicycle Bicycle in Victorian Plymouth, England, with a predecessor of the Starley diamond-frame A cantilever ...
Litespeed uses 6/4 titanium, [20] which is an alloy of titanium with 6 percent aluminum and 4 percent vanadium, instead of the more-common 3/2.5 titanium. [21] It is more difficult to work with, but has a better strength to weight ratio than other available alloys. [ 20 ]
Because wheel offset changes the lever-arm length between the center of the tire and the centerline of the steering knuckle, the way bumps, road imperfections, and acceleration/braking forces turn into steering torques (bump-steer, torque-steer, etc.) and thus, will change the drivability of the vehicle depending on wheel offset.
Bora 50 and 35 wheels become available in Clincher and adopt a wider rim profile. 2015 Potenza group is introduced. 2017 Centaur group reintroduced as Campagnolo's least expensive 11-speed group. 2018 12-speed Super Record and Record mechanical groups are introduced.(for disc and rim brake) Bora WTO (Wind Tunnel Optimized) wheels are introduced.