I really wouldn't advise opting for front suspension. It really doesn't help when learning basics like basic balancing on two wheels (track standing) and is heavy. The weight of a trials bike for a beginner does not matter too much. In my honest opinion I think that a heavier starting bike is better because this allows the rider to develop a good technique faster and build the specialist strength and endurance involved in trials riding. These super light bikes that are available are aimed towards the more advanced riders who have been training for a while in the sport. As for gears, the main function of them on trials bikes is to make getting around a bit easier, not so much of the actual trials riding itself. As you can imagine you need to be aware of how the bike reacts when you pull on the bars and push down on the pedals and that becomes more difficult when you have a selection of different gears. This is why Trials riders generally have one riding gear. Popular ratios are Front sprocket - 22 rear sprocket -18, 18-15, 18-16 and 16-14. The length of the chain stays and a combination of the bottom bracket height will effect how stable and easily the bike is to hold on the back wheel. Think of it like having a short metal bar on the floor and a longer one. The shorter one will be easier to lift the distant end up if grabbed from the close end and tilted upwards due to the difference in leverage. The length of a bike affects on how it rides in many different weights. For example, a short bike (26" 1030 - 1070 area) will responds a lot better when you try to spin,turn and bunny hop it. The longer types ( 1075 upwards ) will be more suited to the more 'pure' trials moves such as side hops, front taps, gaps etc, rather than spinning and bunny hopping. If you have any other questions, don't hesitate to post. Max.