stay away from muddy fox they are just bike shaped objects i know i bought one for 200 earlier in the year and had tons of problems with all the parts.
thankfully got it refunded after 360 miles and most of the time was spent trying to get it to work even when out riding, gears wouldnt shift properly no matter what i did and if i got them working a few miles in they would need adjusted again, cable disc brakes kept misaligning while riding, bottom bracket gave up the ghost after about 166 miles horrible open bracket, oh it also started to rust on parts after about 2 weeks and weighed a ton and the shocks were useless thats a £200 quid one, this one to be exact
http://www.argos.co.uk/static/Produ...5|rnd:8703179365743713479|dvc:c|adp:1o1|bku:1
it was down right dangerous i would go as far to call it a death trap and i cant imagine what one 50 quid cheaper is like, don't do it, my 28 year old ridge back was a lot better and is still safe to ride plus lighter lol
got a decathlon bike and am very happy with it, 40 mile ride today with no problems