ok so i need some with out braking the bank and i want them to be small enough to fit on the trees i was looking at a few and i really like koso north america ones. but a little up their and i also like the trail tech spedo/ tachbut im not sure if it will work with my bike if anyone has any input that would be awesome thanks. and hears a few links i was lookin at..

http://www.denniskirk.com/jsp/tpl/pr...p408293&mmyId=

http://www.denniskirk.com/jsp/produc...fCatId=&mmyId=

http://www.denniskirk.com/jsp/produc...fCatId=&mmyId=