What is the Weight and Dimensions of the Flywheel on the Diamondback Fitness 1260sr ? Dan May 15, 2023 17:18 Updated Follow The Diameter of the Flywheel in the 1260ub Upright Bike is 265mm and it weighs 22lbs. Click to learn more about the Diamondback Fitness 1260sr Upright Bike! Related articles Are there any authorized service technicians near me? Where can I download a product manual? Where is the nearest Diamondback Fitness retail location or dealer (USA)? 510Ic Assembly Video What is the Weight and Dimensions of the Flywheel on the Diamondback Fitness 1260ub ? Comments 0 comments Article is closed for comments.