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Bicycles & Cycling parts lists

BOMwiki maps 55 bicycles & cycling products, each exploded into a recursive bill of materials: 9,308 parts in total, down to individual fasteners and cells. The largest is the carbon wheelset at 3,131 parts across 7 top-level assemblies; the simplest is the dropper seatpost at 24. Across the domain the same components recur: ball bearing, fastener set, coil spring and connector appear in most of these machines, and each is a single shared page here, so a correction to one fixes every product that uses it. Open any product for its parts diagram, the function of each part, and the full bill of materials.

55 bicycles & cycling products

Adult Tricycle A three-wheeled pedal cycle with a step-through frame, rear axle incorporating differential and freewheel gearing, and a front basket for cargo; powered by foot pedals through a chain to the rear hub. 77 parts · 8 subsystems

Bicycle A road/hybrid bicycle. 100 parts · 12 subsystems

Bicycle Cargo Trailer A single- or two-wheel trailer towed behind a bicycle that carries 30-45 kg of cargo on its own axle line, coupling to the bike through an articulating hitch that lets the bike lean and turn independently of the load. 59 parts · 7 subsystems

Bicycle Repair Stand A folding tripod or quadpod workstand that clamps a bicycle by its seatpost and holds it at working height, rotatable through 360°, supporting 25-40 kg while resisting the torque of wrenching on the drivetrain. 39 parts · 6 subsystems

Bicycle Rollers A training stand with three precision-machined drums (front, left rear, right rear) mounted in a foldable frame; a bicycle sits on them and moves rearward to power the drums via friction, with magnetic resistance units offering adjustable load. 42 parts · 6 subsystems

Bike Fitting Jig A motorized geometry measurement and adjustment apparatus: a bicycle frame is mounted on precision scales and motorised linear stages that reposition crank, saddle, and handlebar relative to fixed reference axes, capturing 3D body position. 37 parts · 6 subsystems

Bike Repair Stand A height-adjustable clamping stand for suspending bicycles during maintenance, using a C-clamp head, telescoping column, and folding tripod legs. 53 parts · 7 subsystems

Bike Share Docking Station A public bicycle fleet parking and dispatch terminal with docking points, motorised locks, payment kiosk, real-time occupancy display, and solar power. 24 parts · 7 subsystems

BMX Bike A freestyle BMX bike: a compact 20-inch street/park machine built from a stout 4130 chromoly frame and fork, a sealed-bearing wheelset, a 3-piece crank drivetrain, four pegs for grinds, and a brakeless or U-brake setup. Run brakeless here, with the gyro/detangler and U-brake provided as the alternate cockpit option. 205 parts · 10 subsystems

BMX Race Bike Small rugged bicycle built for racing on dirt jump tracks. 220 parts · 7 subsystems

Carbon Wheelset A pair of wheels with carbon-fiber rims layered over an aluminum or carbon hub, delivering light weight, high stiffness, and aerodynamic profile for road and gravel racing. 3,131 parts · 7 subsystems

Cargo Bicycle Long-john electric-assist cargo bicycle with a low front box, 20in front / 26in rear wheels, a 250W mid-drive motor, and a 36V downtube battery, rated for about 100kg of cargo plus rider. 500 parts · 10 subsystems

Cargo E-Bike A long-tail pedal-assist cargo e-bike with a mid-drive motor, integrated battery, and rear load deck for hauling cargo or passengers. 366 parts · 15 subsystems

Cargo Trike A front-loading tricycle (tadpole "bakfiets" layout) carrying a cargo box between two steered front wheels, pedaled through a conventional chain drivetrain. 96 parts · 8 subsystems

Ceiling Bike Hoist A pulley-block system with locking rope cleat that lifts a bike overhead for storage, using mechanical advantage and hand-over-hand pulling. 37 parts · 7 subsystems

Child Bike Seat A rear- or front-mounted seat that carries a 9-22 kg child on an adult bicycle, combining a crash-tested shell, a five-point harness, spoke-guarding footrests, and a quick-release mounting bracket certified to EN 14344. 54 parts · 7 subsystems

Clipless Pedal System A pedal-and-cleat mechanism using spring-loaded retention and release angles, mechanically bonding foot to crank for power transfer without hand clips. 71 parts · 8 subsystems

Cycle Rickshaw Pedal-powered three-wheeler carrying passengers in a rear seat. A single front wheel is steered and pedalled, while two rear wheels on a fixed axle support a bench seat under a folding canopy. 175 parts · 8 subsystems

Cyclocross Bike A UCI-class drop-bar race bike built for 60-minute cyclocross circuits, running 700c tubeless wheels, knobby 33 mm tyres, hydraulic disc brakes and cross-specific geometry with a high bottom bracket for obstacle clearance. 309 parts · 7 subsystems

Drift Trike A gravity-ridden tricycle with a grippy BMX front wheel and low-friction PVC-sleeved rear wheels, built to slide sideways through downhill corners. 58 parts · 7 subsystems

Dropper Seatpost A vertically telescoping seatpost that lowers via a cable-actuated lever, allowing instant seat-height adjustment for climbing versus descending. 24 parts · 8 subsystems

Dynamo Light System A hub-mounted electrical generator (dynamo) that produces AC power while riding, supplying LED headlight and taillight with automatic on-off and regulation. 47 parts · 7 subsystems

E-Bike A pedal-assist electric bicycle with a mid-drive motor and down-tube battery. 234 parts · 12 subsystems

E-Bike Charging Station A public or private multi-bay e-bike fast-charging terminal with docking points, payment/access control, weather protection, and intelligent power distribution. 63 parts · 7 subsystems

E-Bike Conversion Kit A retrofit kit that turns an ordinary bicycle into an e-bike: a hub-motor wheel replaces the original wheel, a controller switches battery current into the motor phases, and pedal sensors gate the assist to meet 250 W / 25 km/h pedelec rules. 133 parts · 7 subsystems

Electronic Shifting Groupset An integrated drivetrain with motor-driven derailleurs, wireless shifters, and a central battery delivering indexed gear changes at the press of a button. 69 parts · 8 subsystems

Fat Bike An off-road bicycle built around 4-5 inch tires run at 0.2-0.8 bar, whose enormous contact patch floats over snow and sand; the frame, fork, rims, and drivetrain are all widened to clear the rubber. 49 parts · 7 subsystems

Folding Bike A compact folding commuter bike with 16-20 inch wheels, a frame hinge, and a folding stem for transit and storage. 115 parts · 10 subsystems

Freight Tricycle Pedal-powered three-wheeler with a single steered front wheel and two driven rear wheels behind a large steel cargo bed, carrying 200-300 kg of goods at 8-15 km/h. 125 parts · 9 subsystems

GPS Bike Computer A handlebar-mounted navigation and training instrument that fuses multi-constellation GNSS positioning with ANT+/Bluetooth sensor data (heart rate, power, cadence) and records the ride to flash memory. 40 parts · 8 subsystems

Gravel Bike A drop-bar bicycle built for mixed pavement and unpaved roads: a carbon or alloy frame with clearance for 40-50 mm tubeless tires, hydraulic disc brakes, and a wide-range 1x or 2x drivetrain. 54 parts · 8 subsystems

Handcycle A three-wheeled recumbent cycle powered by hand cranks: the seated pilot steers with a handlebar while pedalling with both arms, with mechanical chains and derailleurs steering all motion through a rear-axle gearbox. 190 parts · 8 subsystems

High-Wheel Bicycle A Victorian penny-farthing of the 1870s-1880s with a 48-60 inch wrought-iron front driving wheel pedalled by cranks fixed directly to its hub and a small trailing rear wheel. 259 parts · 9 subsystems

Hydraulic Disc Brake Set A sealed hydraulic system using mineral oil or synthetic fluid to transmit lever pressure through hose to a caliper piston, clamping friction pads against a rotor for braking force. 40 parts · 7 subsystems

Kids Balance Bike A pedal-less training bicycle for children of roughly 18 months to 5 years: the child straddles a low frame, pushes along with the feet, and learns balance and steering before ever touching pedals. 40 parts · 8 subsystems

Motorized Bicycle A conventional pedal bicycle retrofitted with a small two-stroke gasoline engine kit driving the rear wheel by chain, keeping the pedals as starter and backup. 78 parts · 7 subsystems

Mountain Bike A full-suspension trail mountain bike with a front/rear suspension system, hydraulic disc brakes, and a 1x wide-range drivetrain. 193 parts · 10 subsystems

Pedal Go-Kart Human-powered four-wheeled racing vehicle with pedal crank drivetrain, steel frame, rack steering, bucket seat, and freewheel. 243 parts · 7 subsystems

Penny-Farthing A high-wheel bicycle with a very large front wheel (1.2–1.5 metres) geared directly by pedal cranks, a small solid rear wheel for stability, and a skeletal tube frame supporting a leather saddle. 30 parts · 7 subsystems

Portable Tire Inflator A battery-powered air compressor with integrated pressure gauge and auto-stop, fitting inside a jersey pocket for roadside flat repairs. 35 parts · 8 subsystems

Power Meter Crankset A bicycle crankset with strain gauges bonded to its structure that measures the rider's torque, multiplies it by measured cadence, and broadcasts watts over ANT+/Bluetooth at ±1-2 % accuracy. 38 parts · 7 subsystems

Quadracycle (Pedal Car) A four-wheeled pedal-powered vehicle seating two to four riders side-by-side or tandem, with independent foot pedals, a central drive mechanism, and a canvas canopy for shade. 80 parts · 7 subsystems

Recumbent Bicycle A bicycle ridden in a reclined seat with the cranks ahead of the rider on an adjustable boom: the laid-back position cuts aerodynamic drag sharply, and a chain roughly three times normal length carries power back to the rear wheel. 52 parts · 8 subsystems

Road Bike A carbon-fiber road bike with electronic shifting, hydraulic disc brakes, and a crank-based power meter. 177 parts · 9 subsystems

Smart Bike Lock A motorized U-lock with Bluetooth control, GPS tracking, and alarm, allowing remote locking and real-time theft alerts via smartphone. 30 parts · 10 subsystems

Smart Bike Trainer A direct-drive smart bike trainer: the rear wheel comes off and the bike bolts straight to a cassette on the trainer, which simulates road resistance and gradients with an electromagnetic brake and broadcasts speed, power, and cadence over ANT+/BLE. 370 parts · 13 subsystems

Surrey Quadricycle Four-wheeled pedal vehicle with side-by-side pedal drivetrains, four wheels, bench seats, optional canopy, and hand steering. 109 parts · 7 subsystems

Suspension Fork A front suspension assembly with air or coil springs, hydraulic dampers, and elastomer bushings that isolates the rider from ground impacts while maintaining steering control. 37 parts · 8 subsystems

Tandem Bicycle Long-frame bicycle with timing chain between dual cranksets, rear drivetrain, dual seats, and synchronized pedaling for two riders. 124 parts · 7 subsystems

Touring Bicycle Sturdy long-distance bicycle built around a 4130 chromoly steel frame with rack, fender, and water-bottle braze-ons, a wide-range triple drivetrain, 36-spoke wheels on 700C touring tyres, and front plus rear pannier racks for self-supported loaded riding. 300 parts · 9 subsystems

Track Bicycle A velodrome racing bicycle with a maximally stiff frame, a single fixed gear with no freewheel, deep-section aerodynamic wheels, and no brakes, speed is controlled through the pedals. 37 parts · 7 subsystems

Two-Tier Bike Parking Rack A compact double-height bicycle parking rack using gas-assist upper trays, a rigid rail structure, and integrated locking points; holds 6–8 bicycles in the footprint of a single-level rack. 44 parts · 6 subsystems

Unicycle A single-wheel pedal vehicle with no freewheel: the cranks bolt directly to the hub axle, so the wheel turns exactly with the pedals, and the rider balances fore-aft by pedal pressure and side-to-side by steering under the center of mass. 43 parts · 8 subsystems

Velomobile A fully faired recumbent tricycle whose aerodynamic shell cuts drag to a fraction of an upright bicycle, allowing sustained 40+ km/h cruising on human power alone. 112 parts · 9 subsystems

Wheel Truing Stand A precision mechanical stand that holds a bicycle wheel fixed and rotating, with adjustable dial indicators (calipers) measuring rim runout; used to diagnose and correct wheel wobble. 41 parts · 6 subsystems

Parts common across bicycles & cycling 12

Shared components ranked by how many of the 55 products in this domain contain them, directly or inside a sub-assembly.

Ball Bearing in 34 of 55 productsDeep-groove radial ball bearing.
Fastener Set in 34 of 55 productsBolts, nuts, and washers.
Coil Spring in 14 of 55 productsHelical spring of round steel wire that stores energy in compression or extension, used for suspension, return force, and preload.
Connector in 10 of 55 productsMating plug-and-socket pair that joins two lengths of wiring or a cable to a board so a circuit can be assembled, serviced, and separated without soldering.
Oil Seal in 10 of 55 productsSpring-loaded rotary lip seal that keeps lubricant inside a housing and dirt out where a shaft passes through, sized to DIN 3760.
Bare PCB in 9 of 55 productsUnpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it.
Microcontroller in 8 of 55 productsSingle-chip microcontroller combining a processor core, flash memory, RAM, and peripherals such as timers, ADCs, and serial ports to run the device's control firmware.
SMD Passive (R/C/L) in 8 of 55 productsSurface-mount resistors, capacitors, and inductors, typically in 0402 to 1206 packages, that set voltages, filter noise, and time signals on a circuit board.
Alloy Wheel in 7 of 55 productsCast or forged aluminium-alloy wheel that mounts the tyre and bolts to the hub, lighter than a steel wheel of the same size.
Lug Nut in 7 of 55 productsTapered nut that clamps the wheel to the hub studs, tightened to a specified torque in a star pattern.
Neodymium Magnet in 7 of 55 productsSintered neodymium-iron-boron permanent magnet, the strongest commercial magnet type, used for motor rotors, sensors, latches, and speakers.
O-Ring Set in 7 of 55 productsSet of elastomer rings seated in grooves to seal static or slow-moving joints against fluid and gas, sized to ISO 3601.