Motorcycle accessories

Motorcycle accessories

Motorcycle accessories are features and accessories selected by a motorcycle owner to enhance safety, performance, or comfort, and may include anything from mobile electronics to sidecars and trailers. An accessory may be added at the factory by the original equipment manufacturer or purchased and installed by the owner post-sale as after-market goods.

Contents

Fairing

Touring fairing on a Honda Gold Wing

The most prominent of the plastic or fibreglass shells covering parts of the motorcycle is the "fairing". In practice, this may blend almost seamlessly with engine panels or wheel covers/mudguards (which in some cases will be painted or plated metal). These systems act to protect the rider from some or all of the weather, may improve aerodynamics (reducing drag), and are an important styling element.

Modern fairings, mostly designed specifically for each motorcycle and fitted as original equipment by the manufacturer, have eliminated the aerodynamic and structural failings of early add-on fairings. Both sports and tourer versions improve (sometimes very considerably) the rider's comfort in cold and wet weather and even "bikini" versions protect the vulnerable crotch region from water ingress.

Windscreen

Aerodynamic sports fairing on a Honda CBR1000F

Also called windshields or screens, windscreens can be built into a fairing or be attached to an otherwise unfaired bike. They are usually made from transparent high-impact acrylic plastic. They may be shaped specifically to direct air flow over or around the head of the rider even if they are much shorter than the seated rider. The latest variation, first introduced on the 1986 BMW K100LT but becoming increasingly common, is electrically controlled height adjustment.

Heating

Heated handgrips and saddle controls on a BMW

Since motorcycles lack climate control or proper protection from the wind, some manufacturers offer heated seats or hand grips to relieve the discomfort of low temperatures experienced during night riding or the colder months. They can also be added on as after-market accessories and are powered by the bike's electrical system.

Some touring motorcycles, such as the Honda Gold Wing, have louvred vents in the fairing which redirect warm air from around the engine or exhaust toward the rider.[1] These motorcycles may also feature vents for cooling the rider.[2]

Sidecar

IMZ-Ural motorcycle with a "sports" sidecar

A sidecar turns a motorcycle into a three-wheeled vehicle. Their peak popularity (160,000 in the UK in 1955,[3] pre-World War II in the US) came about when powerful motorcycles were available, but there were relatively few cars about. Sidecars such as the British Watsonian were coach-built in wood and had doors, sliding windows and even a sun-roof, but modern sidecars may be fibreglass or aluminium. Alignment of the sidecar is critical and the mountings come under considerable stress, making a quickly-detachable version largely impractical - in any case, the special sidecar tyres are poorly-suited to solo riding.

The cornering of "an outfit" is partly controlled by the throttle and this makes for interesting effects - a sidecar wheel brake fitted (usually a pedal side-by-side with the motorcycle rear brake) helps considerably. Sidecars place a heavy strain on wheel bearings, wheel-spokes and suspension components - even frames and engines may suffer. A hinged sidecar known as the "Sidewinder" became available in the UK in the 1970s, but its popularity came about due to driver licensing requirements, its carrying capacity being approximately limited to one tool-box.

Trailer and tow hitch

A trailer being towed by a motorcycle

A trailer hitch or tow hitch is a device mounted on a motorcycle that enables it to tow a motorcycle trailer. Legislation often restricts them to carrying baggage and not passengers.[4]

Storage

Various options exist to transport items, other than the riders and passenger, on a motorcycle.

Panniers (saddlebags)

Panniers and topbox fitted to a BMW R1200GS Adventure
XL Series III throwover saddlebags on 2005 Harley Sportster

Modern touring motorcycles often have panniers or saddlebags fitted as standard or available as options. They normally come in pairs but may be used individually.

Panniers mount on either side of the rear of the motorcycle roughly underneath (but not interfering with) the seating position of the pillion passenger. "Hard" panniers commonly come in an injection molded plastic such as ABS, and "soft" panniers come in some form of textile (e.g. Cordura) or leather. Panniers are nearly always detachable and often lockable, both of their mountings and their closure. Suitcase-like panniers, side-loading, are ideal for carrying clothing into hotel rooms while top-loading hard panniers are more suitable for shopping trips.

Utility top-loading soft panniers may come in a "throw-over" form without mountings. They can be firmly located by the yoke portion under the rider or pillion or may simply be loose. Despite being quickly detachable, they are not very convenient for carrying around. Increasingly, the bag portion is attached to the yoke with zips, making their use as luggage more convenient.

Trunk

Motorcycle with a removable trunk

A trunk or top-box is a storage compartment fitted behind the seat, often complimenting panniers or saddlebags. Original equipment versions may be removable or an integral part of the bike e.g. as fitted to the Honda Goldwing or BMW K1200LT, and may be fitted with the motorcycle rear lights, and a backrest for a passenger. The top box may also be an after-market fitment.

Trunk may also refer to the under-seat storage space built into a motorcycle or scooter.

Luggage rack

A common addition to many bikes is an attachment onto which bags or other luggage can be fastened. This removes the need for rider backpacks and is generally a more secure and safer way to add carrying capacity to a motorcycle. In the 1950s the popular British motorcycle Triumph often came with a tank-mounted carrier. Load-security was better, but they lost popularity over the unproven, but keenly felt, danger to the rider in the event of a front-end collision.

Crash damage protection

Frame sliders

A frame slider mounted to a Suzuki GSX-R750
Fork sliders (left), bar end sliders (center) and frame sliders (right) on a Ducati SportClassic

Frame sliders, also called frame protectors, fairing protectors, or crash bobbins, are an accessory used on street motorcycles for the purpose of maintaining the bike's side fairings and internal components in the event of a crash, or preventing damage from dumping (dropping) the bike. They are made of plastics such as Delrin, acetal, or nylon, or sometimes aluminum. The frame sliders are usually located and installed on the engine bolts on the left and right side fairings.[5][6][7]

Along the same lines, sliders are sometimes added to motorcycle bar ends, and to front or rear axles, called fork sliders and swingarm spool sliders. These provide some potential damage reduction for the suspension components, wheels, and other parts by making contact with the ground before the rest of the bike. Hard-mounted foot pegs, which do not fold upward as normal original equipment foot pegs do, can also serve as a buffer between the ground and the bike's frame and components[8] but risk causing a spill if grounded unexpectedly.[citation needed]

Crash bar

A Moto Guzzi Ambassador sidecar rig with a crashbar.

Crash bars aim to protect motorcycle engines and body panels and are believed to protect the rider. They are less popular now than they used to be,[7] vulnerable engines and fairings sometimes being protected by frame sliders instead.

A common arrangement of crash bar is a loop of chrome-plated steel tube mounted each side of a motorcycle's lower frame. As well as their protective function, they are valuable as a mount point for accessories like highway pegs, lights and, on police motorcycles, sirens, cameras and radar guns. One variation is the sump-guard, primarily for off-road riding.

See also

References

  1. ^ Russell, David. "Touring Bikes Comparison - Long Rangers". Motorcyclist magazine. http://www.motorcyclistonline.com/features/122_0809_touring_bikes_comparison/honda_gold_wing.html. Retrieved 2011-03-05. 
  2. ^ "Honda Gold Wing vs. BMW K1200 LT". motorcycle.com. 22 March 2000. http://www.motorcycle.com/shoot-outs/honda-gold-wing-vs-bmw-k1200-lt-15608.html. Retrieved 23 January 2010. 
  3. ^ 160,000 sidecar outfits on the road in 1955 in the UK. Watsonian-Squire sidecars
  4. ^ "Trailer Information". British Motorcyclists Federation. http://www.bmf.co.uk/pages/bmf_main_pages.php?main_page_id=136. Retrieved 9 May 2010. 
  5. ^ Seeley, Alan (2004), The Motorcycle Book, MotorBooks/MBI Publishing Company, p. 117, ISBN 0760317453, 978076031745, http://books.google.com/?id=gX9uopenItAC&pg=PA117 
  6. ^ Brasfield, Evans (2004), 101 Sportbike Performance Projects, 101 Projects Workshop Series, MotorBooks/MBI Publishing Company, p. 231, ISBN 0760313318, 9780760313312, http://books.google.com/?id=kFgpc28hnukC&pg=PA232 
  7. ^ a b Falloon, Ian (2004), Suzuki GSX-R Performance Projects, MotorBooks/MBI Publishing Company, p. 199, ISBN 0760315469, 9780760315460, http://books.google.com/?id=u3U2xiPWWyQC&pg=PA119 
  8. ^ Larson, Kent (2005), Motorcycle Track Day Handbook, MotorBooks/MBI Publishing Company, p. 57, ISBN 9780760317617, http://books.google.com/?id=gg1LM967OhMC&pg=PA57 

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