Tacx i-Magic Fortius Virtual RealitySystem accurately simulates all riding conditions and works with reallife videos, sold separately, that simulate famous courses around theworld. Features new software options that offers choice of ridergender, clothing, teams, and bikes.Product Specifications Accurately simulates all riding conditions including downhill Works with real life videos, sold separately, that simulate famous courses around the world New software options offers choice of rider gender, clothing, teams, and bikes Three totally new terrains are included with the trainer Sophisticated training tools including Analysis software System Requirements: - 2ghz P4 processor or higher - 512mb of memory - 8x AGP video card with 256 mb of video memory - 1 free USB port - Windows 98, 98Se, Me, 2000 or XP OS - i-Magic software is not compatible with Mac operating systems Soft Gel roller with a stainless cover reduces noise and is durable

The Fortius is a trainer in a class by itself.  It is an interactive trainer with a motor brake that can simulate uphill and downhill rides.  When riding downhill, the motor spins the rear wheel so you can coast, just like when you ride outside! The software contains three virtual reality rides, Catalyst training software, Analyzer software, and a Real Life Video demo.  You can adjust your workout so you're riding alone or with other riders, vary the terrain and difficulty of your route, and you can even customize the weather, your virtual bike, and jerseys the riders are wearing. The Catalyst training software tracks heart rate and data from previous workouts with the same capabilities of Tacx's Cosmos Ergotrainer. Recommended System Resources:Processor: Pentium IVMemory: 512MBHard disk space: 850MBGraphics card: DirectX9 compatible 3D card with 128 MB of memory (GeForce FX or equivalent)Sound card: DirectSound compatible1 free USB port, DVD player (for use of Real Life Video only)OS: Windows 2000 or XP.

The Kinetic Rock 'n Roll Rear Wheel Trainer simulates out-of-the-saddle hill climbing and uses a floating pivot that provides the feel of a natural ride while frame moves and rocks from side-to-side with you. Floating pivot provides a natural ride Frame moves and rocks from side-to-side with rider Simulates an incredibly realistic ride for out-of-the-saddle hill climbing Progressive damping supports riders of any weight Unconditional Lifetime warranty on frame and resistance unit Compatible with all bikes with 16" to 29" diameter wheels

Kreitler's best roller drums. Top-end alloy end caps are the longest lasting available. Note: this is a set of drums only! You need a Kreitler roller frame also to make a set of complete, usable rollers Includes roller belt

When you want a special challenge! Smaller diameter drums mean extra rolling resistance for stronger riders. Alloy end caps - Kreitler's longest-lasting and highest-quality drums Includes roller belt Lifetime warranty from KreitlerNOTE: Does not include roller frame. This is the drums only. Add a frame kit to make a complete set of rolllers.

The Fluid2 trainer from Cyclops now features a larger flywheel to better simulate the feel of the road.  It has an infinite resistance curve with new self-cooling mechanisms to cut down on wear and tear from long hours of winter training.  The Fluid has a cam-lever mechanism for adjusting resistance and CycleOps' patented Power Band technology for a wider resistance range.

The Road Machine from Kinetic is a fluid trainer featuring a sealed fluid chamber containing silicone resistance fluid that is guaranteed not to leak.  It offers consistant resistance no matter what the external temperature is, and with 80 cooling fans, the resistant unit operates at a lower heat than other fluid trainers.

The Challenger features 4.5" diameter by 15" wide aluminum drum tubeswith black polycarbonate end caps, for the cost conscious riders whovalue the ride of the larger drums.This is the "budget" option from Kreitler. Quite durable, but with dollar-saving poly end caps instead of aluminum. Note: this is a set of drums only! You need a Kreitler roller frame also to make a set of complete, usable rollers Includes roller belt

The CycleOps Rollers has a lathe-turned 3.5" PVC or 3.25" aluminum rollers with precision bearings. The belt is adjustable for right or left dismount. Adjustable to fit any size bike. Features and Information Rollers Lathe-turned 3.5" PVC or 3.25" aluminum rollers with precision bearings Extra-wide bi-fold design is stable yet stores easily, comes fully assembled Belt is adjustable for right or left dismount Adjustable to fit any size bike Resistance unit works on aluminum rollers   

This is the "budget" option from Kreitler. Quite durable, but with dollar-saving poly end caps instead of aluminum. Note: this is a set of drums only! You need a Kreitler roller frame also to make a set of complete, usable rollers Includes roller belt

The Minoura RDA (Rim Drive Action) Inter Rim Rear Wheel Trainer comes with remote shifter. Expert-level 850 gram flywheel, works with any tire since resistance units contact the rim. Extra powerful magnet increases high range of resistance by 23%. Works with any tire since resistance units contact the rim Expert-level user with 850 gram flywheel Skewer and skewer adaptor included Dial and Remote include seven magnetic resistance levels Extra powerful magnet increases high range of resistance by 23% Quieter, improved heat dissipation

This Minoura Trainer uses VFS Fluid technology tire drive, fits 24" to 700c wheels, and folds up flat for storage. Extra powerful magnet increases high range of resistance by 23%. VFS: Fluid technology trainer Works only with smooth tires Skewer and skewer adapter included Dial and Remote include seven magnetic resistance levels Fits 24" to 700c wheels, folds flat for storage Extra powerful magnet increases high range of resistance by 23% Quieter, improved heat dissipation