What is the Q-Factor on the Diamondback Fitness 1260sc? Dan October 01, 2020 21:09 Follow The 1260sc has a Q-Factor of 187mm and a Crank Arm Length of 173mm. Check out all the specifications on the Diamondback 1260sc by clicking here! Related articles Is There a Way to Calibrate the Diamondback Fitness 1260sc Console? Does the Diamondback Fitness 1260sc Connect to the Peloton App? The Seat on My Diamondback Fitness 1260sc Slowly Lowers, How do I Fix it? Where is the nearest Diamondback Fitness retail location or dealer (USA)? Where can I download a product manual? Comments 0 comments Please sign in to leave a comment.