Life is not, as someone said, a bowl of minestrone but rather a series of choices. Recognising this, Isaac have re-engineered the Impulse to make a frame that's light enough and stiff enough to satisfy the vast majority of users. There are no compromises in terms of materials or strength but, rather, a sensible balance which will satisfy the vast majority of serious cyclists. A 57cm frame weighs 1,322gm.

The Kelvin is a great all round performer. Designed for those who dont want to spend the earth on a road bike but want a state of the art lightweight carbon road bike that will be suitable for road racing, sportives and long training rides. Using a carbon frame the Kelvin suits its designed role perfectly. Isaacs distinctive head tube and large bottom bracket give the same great stiff feel as their Force and Impulse frames. This complete bike comes equiped with Shimano's second in line 10 speed ultegra groupset giving light band reliable shifting performance.

The bike roles on the ever reliable Mavic Ksyrium Race wheels which are suitable for training and the odd race, but a ripe for upgrading if racing is what you mainly intend to use this bike for.