[sdcantrell56]

I would say for a team that is designing everything in CAD and understands the need for tensioning, 25 chain should absolutely be used. We have only ever used 25 chain and this past year used timing belt. The belt worked flawlessly but does require even more planning beforehand. I would definitely put emphasis on really determining what size of belt you need for the given power. All things considered, 25 chain isnt much heavier than belt and probably easier for you guys so I'd say stick with that but move to direct driving one of the wheels and a spur gear transmission ala toughbox