Conquer Indoor Bike Trainer Portable Exercise Bicycle Magnetic Stand Heavy duty construction w/ extra wide frame for stability - folds quickly Sturdy mounting cups reduce slippage (quick release included) Single adjustment, progressive magnetic resistance Compatible with 26 in., 27 in. and 700c bikes Front wheel Riser Block Included, requires a bike with a rear quick release wheel Simple to assemble, no tools are necessary Made from durable hi-ten steel Extra wide frame provides maximum stability Easy to fold for storage Compatible with 26 in., 27 in. and 700c bikes with solid axle or quick release rear wheel Rear wheel skewer is included (swap with quick release skewer on bike for trainer use) Skewer measures 7.5&#034; long. If your bike&#039;s skewer is any longer, or if your bike has more than 10 gears on the rear cassette, this skewer (and the trainer) may not work for you. Included is a front wheel riser block which helps level the bike and keeps its front wheel stable You can work out at home, on YOUR bike. Stay dry, warm and weatherproof! There is no traffic, and no smelly vehicle fumes. Train for stamina, cadence, form and endurance. Develop core strength. Watch TVor stream a movie; catch up on podcasts while you ride. Bike trainers are portable. Put one anywhere in the house, garage, or on porch. Easy to take on vacation or work travel.