Kindernay was a brand of hub gears manufactured by the Norwegian start-up company CA Technology Systems. [1] They used hydraulic gear levers and were manufactured in Oslo, Norway. Their system differed from their competitors by having a modular design called Swap Cage where the gear mechanism can be easily separated from the hub housing, so that the end-user can use the hub gear with several different wheel sets. [2] This could make it easier and more economical to change wheel sets to adapt the bike for different seasons or roads, or so that wheels can be easily changed between bikes. [3] The hubs are assembled at Kindernay's factory in Oslo by hand, but in the long term it was planned that production be automated and assembled by robots. [4]
In 2000, the entrepreneur Christian Antal was studying economics when he began to materialize his interest in developing a bicycle gear, and entered into a collaboration with the mechanical engineer Knut Tore Ljøsne, who had previously worked at Kongsberg Automotive. [5]
In 2010, CA Technology Systems was founded. [6] [1] A prototype of the 14-speed Kindernay XIV hub was presented in 2016. [7]
In 2021 Kindernay was one of the winners of the prestigious Eurobike award for their 7-speed hub model Kundernay VII which is approved for 160 Nm, [8] [9] and is designed to withstand heavy loads that can occur on for example cargo bikes. [10] The efficiency of the XI hub has been tested by the Norwegian University of Science and Technology, and the results will be available from July 2023. [11] in late 2023 kindernay went bankrupt. [12] [13]
Compared to their main competitor Rohloff who makes hub gears with 6 planetary series, Kindernay uses 3, which they claim simplifies the design and reduces weight. Kindernay claims to have patented the important innovations of their system, and that they have patents that last until 2032. [8] The wheels have freehub with 24 points of engagement, [14] and Kindernay differs by having a 12 mm through-axle on all their models. [8] Their hubs can be adapted to frames with standard widths of 135 mm, 142 mm and 148 mm. [15] [16]
A mountain bike (MTB) or mountain bicycle is a bicycle designed for off-road cycling. Mountain bikes share some similarities with other bicycles, but incorporate features designed to enhance durability and performance in rough terrain, which often makes them heavier, more complex and less efficient on smooth surfaces. These typically include a suspension fork, large knobby tires, more durable wheels, more powerful brakes, straight, wide handlebars to improve balance and comfort over rough terrain, and wide-ratio gearing optimized for topography, application and a frame with a suspension mechanism for the rear wheel. Rear suspension is ubiquitous in heavier-duty bikes and now common even in lighter bikes. Dropper seat posts can be installed to allow the rider to quickly adjust the seat height.
A hub gear, internal-gear hub, internally geared hub or just gear hub is a gear ratio changing system commonly used on bicycles that is implemented with planetary or epicyclic gears. The gears and lubricants are sealed within the shell of the hub gear, in contrast with derailleur gears where the gears and mechanism are exposed to the elements. Changing the gear ratio was traditionally accomplished by a shift lever connected to the hub with a Bowden cable, and twist-grip style shifters have become common.
Shimano, Inc., originally Shimano Iron Works (島野鐵工所) and later Shimano Industries, Inc. (島野工業株式会社), is a Japanese multinational manufacturing company for cycling components, fishing tackle and rowing equipment, which also produced golf supplies until 2005 and snowboarding gear until 2008. Named after founder Shozaburo Shimano and headquartered in Sakai, Osaka Prefecture, the company has 32 consolidated and 11 unconsolidated subsidiaries, with the primary manufacturing plants based in Kunshan (China), Malaysia and Singapore.
Campagnolo is an Italian manufacturer of high-end bicycle components with headquarters in Vicenza, Italy. The components are organised as groupsets (gruppi), and are a near-complete collection of a bicycle's mechanical parts. Campagnolo's flagship components are the Super Record, Record, and Chorus groupsets with all three representing their recent shift to 12-speed drivetrains. Super Record and Record are the top groupsets, followed by Chorus, Potenza, Centaur and Veloce. Campagnolo also produces aluminum and carbon wheels, as well as other components.
A bicycle chain is a roller chain that transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it. Most bicycle chains are made from plain carbon or alloy steel, but some are nickel-plated to prevent rust, or simply for aesthetics.
A touring bicycle is a bicycle designed or modified to handle bicycle touring. To make the bikes sufficiently robust, comfortable and capable of carrying heavy loads, special features may include a long wheelbase, frame materials that favor flexibility over rigidity, heavy duty wheels, and multiple mounting points.
A portal axle is an off-road vehicle suspension and drive technology where the axle tube or the half-shaft is offset from – usually above – the center of the wheel hub and where driving power is transferred to each wheel via a simple gearbox, built onto each hub. It gives two advantages: ground clearance is increased, particularly beneath the low-slung differential housing of the main axles — and secondly, any hub reduction gearing allows the axle half shafts to drive the same power but at reduced torque. This reduces load on the axle crown wheel and differential.
Gear inches is an imperial measure corresponding to the diameter in inches of the drive wheel of a penny-farthing bicycle with equivalent (direct-drive) gearing. A commonly used metric alternative is known as metres of development or rollout distance, which specifies how many metres a bicycle travels per revolution of the crank.
SRAM LLC is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987. SRAM is an acronym comprising the names of its founders. The company produces a range of cycling components, including Grip Shift, and separate gravel, road, and mountain drivetrains from 7 to 12 speed. SRAM developed the Eagle line of mountain bike specific drivetrain components intended to improve shifting performance. SRAM was also the first to release a dedicated "one by" drivetrain with a single front chainring for road bikes.
The Rohloff Speedhub is an epicyclic internal hub gear for bicycles, developed and patented by Rohloff AG. It has been manufactured and marketed by that company since 1998. The Speedhub 500/14 has 14 equally spaced, sequential, non-overlapping gear ratios operated by a single twistgrip. The overall gear range is 526%, meaning the highest gear is 5.26 times as high as the lowest gear. Individual gear shifts when shifting up give an increase of about 13.6%.
Bicycle gearing is the aspect of a bicycle drivetrain that determines the relation between the cadence, the rate at which the rider pedals, and the rate at which the drive wheel turns.
A belt-driven bicycle is a chainless bicycle that uses a flexible belt, typically a synchronous toothed design, in order to transmit power from the pedals to the wheel.
Nuvinci Cycling technology currently under development for other applications, including wind turbines, light electric vehicles, outdoor power equipment, and automotive front-end accessory drives.
Bernhard Felix Rohloff was a German businessman who was the founder of Rohloff AG, and the inventor of several innovative products, amongst others, the 14 speed Rohloff Speedhub 500/14 planetary gear hub.
Bicycle drivetrain systems are used to transmit power on bicycles, tricycles, quadracycles, unicycles, or other human-powered vehicles from the riders to the drive wheels. Most also include some type of a mechanism to convert speed and torque via gear ratios.
This page is a list of internal hub gears for bicycles.
A gearbox bicycle is a bicycle that uses a gearbox to convert torque and rotational speed from the power source, usually the rider's legs, to what is desired at the drive wheel. The gearbox is usually incorporated into the frame near the crank, and it may be used in addition to or instead of derailleur gears or a hub gear. Cited advantages include improved shifting performance, protecting the gearing from damage and exposure to dirt and moisture, as with hub gears, plus locating the additional mass between the two wheels and on the frame where it may be suspended, unlike with hub gears.
A gravel bicycle is a type of bicycle intended for gravel cycling, including gravel racing. They are also sometimes known as "adventure bicycles", particularly ones intended for harsher off-road terrain.
Veer Cycle is an American manufacturer of drive belts for bicycles and light electric vehicles. The company introduced Split Belt as their first product in 2018, which is a belt that can be spliced with rivets, and therefore can be installed on bicycle frames with ordinary rear triangles. Veer claims their split belt is as strong as a chain, but with a higher efficiency. The belts are made of nitrile reinforced with carbon fibre, and can be used on vertical droputs or full suspension bikes by using a belt tensioner.