The TRIGO UP is very flexible. With above-seat instead of under-seat steering, it is just as easy to adjust as the TRIGO. With the above-seat handlebars and the low position of the bottom bracket, the pedaling and steering dynamics are reminiscent of a standard upright bike. seat height 23”–26¼” (58.5-66.5cm) – 8-speed internal gear hub – twist shifter – aluminum frame and fork – Kenda 58-406mm tires with reflective sidewalls and puncture protection – Samox crankset 155mm 36T – Promax DSK-300F mech. disc brakes with parking-brake mechanism