Triathletes require a combination of equipment to perform each sport of the triathlon--swimming, cycling and running. Triathlon bikes--also called tri bikes or time-trial bikes--are one of the most important pieces of equipment for the triathlete. The bike incorporates specific geometry, components and materials to maximize aerodynamics and power transfer.
Benefits
The most important benefit to triathlon bikes is the aerodynamics achieved through the geometry and features. Aerodynamics allows the triathlete to reduce wind resistance that can sap energy levels and decrease speed. Triathlon bikes also feature the ability to adjust the seat angle to match the individual requirements of the triathlete for efficient power transfer during every stroke of the pedal.
Features
Common features of triathlon bikes include aerobars, wheels and pedals. Aerobars are handles that extend forward from the handlebar and allow the triathlete to assume an aerodynamic position with the ability to switch gears and tap the brakes. Carbon fiber tri-spoke wheels provide lightweight, aerodynamic wheels that reduce wind resistance and specific pedals can be used with triathlon cycling shoes to maximize power output.
Size
The overall size of triathlon bikes can be adjusted to fit the individual triathlete, but the most common size adjustment on triathlon bikes is the seat angle. Seat angles can be adjusted to change the aerodynamic position and can typically be adjusted between 74 and 81 degrees. A steeper seat tube angle at 76 to 78 degrees allows the triathlete to preserve muscle strength and energy for the upcoming running leg of the triathlon.
Considerations
Triathlon bikes are available in a variety of shapes, sizes and models with a combination of components from aerobars, wheel sets, saddles, tires, derailleurs, brakes, chains and headsets. Each component is important for the overall performance and function of the triathlon bike. As a beginner triathlete, Bethel Cycle recommends focusing on a top-quality frame and fork based on your budget. After purchasing a frame and fork, components can be added you progress and improve as a triathlete.
Price
As of 2010, triathlon bikes can cost between $1,400 to over $4,500, depnding on the quality of construction, materials and components. Entry-level bikes can be purchased for about $1,400 to $2,000, and mid-level bikes offer professional performance with value at $2,500 to $4,500. Triathlon bikes costing over $4,500 can typically be customized to match your specific body size and type and allow you to design the frame, components and wheels.
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