Sunday, September 30, 2007 11.00pm
Fashion, modernity and to a larger extent ease of fitment dictate that the current crop of two-piece cranks are the thing to have on your bike these days. But the three-piece Isis drive crank is very much alive in the Terry Dolan stable as he believes that there is no real advantage to a two-piece. "The bearings spin smoother," he says of his design. We agree that the amount of friction caused by the bearing seals on some two-piece cranks is less than ideal but this is largely a thing of the past.
These Alpina carbon cranks by Terry Dolan have a 130mm BCD (Bolt Circle Diameter) and aluminium plugs where they interface with the pedals and b/b axle and are compatible with all Isis bottom brackets. At 575g including chainrings they are around 200g lighter than an all-aluminium Isis Drive chainset and with the bottom bracket valued at around £60 the chainset /b/b combination represents fairly good value for money. The Shuriken chainrings are available in a 39/53 tooth configuration for around £35 the pair. They represent the same quality as Stronglight with CNC machined teeth that show little sign of wear after a month of testing and they are sure to provide long service. In most cases the chain ramps between the chainrings of a 10-speed Shimano gear setup smoothly but the transition from the small to the large chainring is slower than Shimano chainrings when shifting under pressure.
What's the score with BikeRadar reviews? You can
find a full
explanation of our ratings here.