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 Does the Diamondback Fitness 1260sc Connect to the Peloton App? Is There a Way to Calibrate the Diamondback Fitness 1260sc Console? 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)? What is free curbside shipping? Comments 0 comments Please sign in to leave a comment.