Join Date: Aug 2006
Location: Portland OR
Bikes: 61 Bianchi Specialissima 71 Peugeot G50 7? P'geot PX10 74 Raleigh GranSport 75 P'geot UO8 78? Raleigh Team Pro 82 P'geot PSV 86 P'geot PX 91 Bridgestone MB0 92 B'stone XO1 97 Rans VRex 92 Cannondale R1000 94 B'stone MB5 97 Vitus 997
On the road you get breaks. Coasting, lights, downhills, curves, easing up. In the spin class you never get a break. You pedal as hard and as long as you want or can, without road conditions to worry about. Also, on the spin bike you can crank up the resistance to any level. Sometimes I will turn it up until it is very hard to turn the pedals over, it becomes like lifting weights, I'll do this for a while each class. It has definitely helped my leg strength. To duplicate that on the road you'd have to find a meaningful hill and go up in 53 x 12 or something equally daft.