Fact is 8r carbon frame with tapered head tube and elliptical seatstays is race ready stiff and fast without sacrificing compliance the monocoque fact carbon fork is light stiff and compliant with a tapered steerer race ready dt axis 30 wheels are fast and light but still durable enough for high mileage training adjustable 4 position oversized alloy stem with carbon clip front cone plus new specialized tarmac comp alloy handlebar is stiff tough and light for serious performance shimano ult