Which computer suitable for mtb/ Also what protection

[CaptainSlow]

Hi,

Any recommendations for a cheap/basic computer to measure speed/trip distance?

Also, during my ride this evening I have found a great downhill section that I want to go a bit faster down. I'm keen to get some elbow/knee padding as the trail is a bit rutted and has some large stones. Any recommendations for some pads that won't make me look a knob when I get back on the road?

[SCOOTERMAN]

1) Any computer'll do. El cheapo Cat Eye wireless jobbie on my bike works nicely

2) 661 Kyle Straits or Veggies. The former is bigger and has a hard shell, the latter smaller and no hard shell. I've found the Straits to be fine for pedalling too