Alot of effort goes into the various techniques required to ride a bike swiftly and safely...but spare yourselves a good long thought for braking. Simply put...if you can't slam on the brakes hard in an emegency and still maintain good control of your bike, then you need to slow down a bit. Speed in of itself is not too much of a problem if it's the right speed for the conditions, but don't forget relative speed. If traffic is travelling at 60, 80 or 100k's and you are moving along at that same relative speed with the traffic then you are 'relatively' safe...If you you travel at a speed well in excess of the general traffic - ie 80k when everyone else is doing 60k, then you need to think about your braking abilities. Out accelerating cars is'nt hard to do...out braking them is a different story all together, and can put you in serious danger the higher your speed is, relative to the general traffic speed. Anyway...just be mindful of your braking, as it is very easy to get caught out, and suddenly find yourself way out of your depth. And you won't like the result. Get comfortable braking hard - get proficient at it, and then don't be afraid to use them. John.