Knee bend under 60 degrees Retroflex RX2 or RX3 Knee bend over 60 degrees Retroflex RX2 or RX3 Recreational trails and road Retroflex RX2, RX3 or Comfort cranks Rehab following surgery Retroflex RX2 (Exercise Bike or Static Trainer) Sport Road Retroflex RX3 or Custom [...]
Slightly, but often not as much as one might imagine. It will of course vary between users, depending upon each persons available range, fitness and strength. The Retroflex Adjustable Cranks and Comfort Cranks is simply facilitating making outdoor exercise accessible and enjoyable, to be able to enjoy fresh air, and to be able to reach [...]
No the cranks are a fixed position which drop your knee bend to approximately 90 degrees whilst allowing a lower than normal seat height.
Yes the cranks can be adjusted should you improve or if knee bend becomes lessened.