Bicycle PartsSigma bike parts

Sigma categories

Top Sigma Products
Sigma Topline Computers image Sigma Topline Computers

- All Topline computers feature current speed, cumulative odometer, trip distance, trip time, KMH/MPH auto conversion and 12/24 hour clock. All are waterproof and include batteries and a 5-year warranty
- Digital Transmission System (DTS) found on wireless models (wired models are not upgradeable to wireless)
- BC2006L has current and total altitude with current temperature. Choose black or Rocky Mountain Team Limited Edition version
- BC1706 and higher models have current, average, and max heart rate
- BC1606 and higher models have backlight, L series has cadence, L-R has cadence and rear wheel harness (great on trainers)
- BC1106 and higher models have memory backup for settings
- BC906 and higher models have a low battery indicator
- SM-1108 includes 1106 head unit packaged with a wired harness for a second bike for 2-bike programmability

Sigma DTS Wireless Transmitters image Sigma DTS Wireless Transmitters

- Digital Transmitter System (DTS) wireless transmitter replacements for post-2005 Sigma wireless head units
- There is no wired-to-wireless conversion for post-2005 wired models

Sigma Computer Wheel Magnets image Sigma Computer Wheel Magnets

- Power magnet offeres a solution for odd spoke sizes or distances of up to 20mm between the spoke and the sensor

Sigma Cadence Sensors and Magnets image Sigma Cadence Sensors and Magnets

- Wired cadence sensor kit converts Sigma BC1600/1100/1200/1400/1606L
- Y-outlet cable routing is ideal for all frame and handlebar diameters
- Sensor provides information on the current and average cadence. If pedal frequency is not installed on the BC 1606L, the cadence indicator can be hidden

Sigma Wire and Sensor Kits image Sigma Wire and Sensor Kits

- Twist Lock: for all 2003-2005 Topline Twist Lock System computers
- Front sensor for bike-2 automatically switches the bike computer for either Road or Mountain bike, saving conversion time or buying a second computer
- Rear sensor wire is 1700mm long

Sigma Computer Batteries image Sigma Computer Batteries

Sigma PC-Series Heart Rate Monitors image Sigma PC-Series Heart Rate Monitors

- All Sigma heart rate monitors facilitate training in target zones, featuring pulse monitor, 12/24 hour clock, 5-year warranty and are waterproof to 3 meters
- PC-15 and PC-9 have a Training Manager which monitors, plans and evaluates all workout data for up to 7 workouts, an Exercise Zone feature which calculates ideal personal training limits and 1-3 manually adjustable heart rate limits, 5 languages. PC15 also has an alarm clock, lap counter and back light

Sigma Onyx Heart Rate Monitors image Sigma Onyx Heart Rate Monitors

- Targeted training made easy with digitally coded monitors to ensure training data is recorded accurately and available for detailed analysis
- All Onyx models include ECG-precise heart rate tracking, water resistant cases, backlight, tool-free battery compartment
- Fit and Pro models include setting based upon maximum heart rate or individual anaerobic threshold (IAT)
- Fit model also includes the VO2 max Rockport test
- Balance and Classic feature easy-to-read extra-large figures (same computer, different colors)

Sigma Heart Monitor Chest Strap/Transmitter image Sigma Heart Monitor Chest Strap/Transmitter

- Replacement chest straps for Sigma heart rate monitors
- Coded fits all Onyx models and BC1706/BC2006
- Non-coded fits PC-3, 4, 9, 15, Shape, Fit
- 60cm maximum chest size

Sigma Evo-Series Light System image Sigma Evo-Series Light System

- Available with single or dual halogen lamps and regular sealed lead acid battery or longer life nickel metal hydride flat pack
- Features tool free mounting, waterproof case, universal fit system
- Includes stem/bar/helmet mounts, helmet mount extension cord, Smart Charger
- 5 year warranty on the housing

Sigma PowerLED Black Light System image Sigma PowerLED Black Light System

- High-powered 90-LUX LED in a durable, waterproof aluminum case
- Wide angle reflectors spread light over 240 feet ahead of the rider
- Three light modes including economy, standard and hi-power
- Tool free stem/bar mount fits bars 22-62mm in diameter
- Choose standard battery or IION Li-Ion for lighter, longer lasting and rechargeable battery (included)

Sigma SiLED Luxeum Headlight image Sigma SiLED Luxeum Headlight

- Superbright 1 watt Luxeum lamp offers 8-28 hours burn time
- Adjustable, washable elastic headband and batteries included
- Combine with BTI #SM-3295 helmet mount conversion if headband is not desired

Sigma Kalmit Headlight image Sigma Kalmit Headlight

- Single high-powered white 15-LUX LED illuminates over 100ft ahead of rider
- Durable aluminum housing with 2 modes including standard and hi-power
- Tool free bar mount (22-32mm), waterproof case, batteries included

Sigma NiPak Battery/Charger image Sigma NiPak Battery/Charger

- Nickel metal hydride flat pack battery doubles Mirage-X burn time
- NiMH is also lighter and accepts more charges than sealed lead
- Also includes Smart Charger and splitter cable
- Compatible with any Mirage-X dual lamp headlight

Sigma SiLED Helmet Mount Kit image Sigma SiLED Helmet Mount Kit

- Helmet mount replaces elastic headband with 2 hook-and-loop straps and cable guide

Sigma TriLED Headlight and Set image Sigma TriLED Headlight and Set

- 3 super bright white LED micro lights, visible over 2000ft
- 3-stage soft touch power switch: flashing/steady/off modes
- Uni-Fit click-release handlebar bracket fits bars 22-32mm diameter
- Over 100 hrs run time on 3 AA batteries (included)
- SM-3301: TriLED headlight packaged as a set with Cuberider taillight

Sigma Micro-W Headlight image Sigma Micro-W Headlight

- Single white LED compact safety light with Velcro straps
- Features steady and flashing modes. Batteries included

Sigma Micro-R Taillight image Sigma Micro-R Taillight

- Single red LED compact safety light with Velcro straps
- Features steady and flashing modes. Batteries included

Light/Computer Combo Pack image Light/Computer Combo Pack

- super bright TriLED head light visible up to 300 meters
- Cuberider taillight
- 5 function BC506 computer
- batteries included
- 5 year warranty

Sigma Micro Light set

- Single front and rear LED compact safety lights with velcro straps
- Features steady and flashing modes. Batteries included

Featured products
  • Delta Airzound Bike Horn 
    - 115 decibel horn with volume control switch
    - Mounts to most handlebars. No batteries needed
    - Air reservoir is easily refilled with any bike pump
    - Extension allows for more versatility when mounting system
  • Campagnolo BIG Corkscrew 
    - A true classic, and symbol of genius for an iconoclastic brand
    - Patented telescopic, self-aligning system always centers the screw in the center of the cork
    - Hardened steel screw with a wide and shapr profile provides maximum grip on the cork, while the two large levers enable easy extraction without disturbing the wine
    - Includes a wooden case with vinyard-esque packing material
  • Kenda Standard Butyl Tube 
    - Standard .85mm wall thickness butyl tube
  • Maxxis Xenith 26" Tire 
    - Mountain bike specific slick tire for 26" cross training
    - 60 tpi casing, 70a durometer: Durable, fast rolling compound
  • Planet Bike Freddy Fenders Hardcore Fender Set 
    - Superflex unbreakable all-weather polycarbonate
    - Pre-installed stainless steel hardware with mud flaps
    - Includes all hardware for mounting to virtually any bike
  • OURY Grips 
    - Thick profile and raised square blocks with a sticky feel, 98g
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