Suzuki GSX-R 400
The GSX-R400 got a new frame (GK73A) and new overall appearance in 1988. The new model was presented in February 1988. The redesigned GSX-R got once again new fairing and shorter wheelbase, but the weight increased a bit due to the stronger new chassis and exhaust system. The model also got slingshot carburetors, polished chrome silencers, curved radiator, Tokico 4-cylinder front brake calipers and a rear hugger mudguard. The new 4 into 2 exhaust was meant to increase the torque on the mid-range band, but had only a marginal effect. The 400cc series were increasing popularity in Japan and a production racer with different suspension and gearing, GSX-R400 SP (Sports Production) was presented for 1988. It looked almost identical with the standard GSX-R400 but didn't have passenger foot pegs and you could spot the rear suspension gas reservoir peeking out from under the seat. Also the front suspension was different from the standard model. The SP version also had a Sports Production logo on the tailpiece. To compete in production racing, the manufacturers produce SP (Sports Production) versions of their sports bikes. These usually have fully adjustable suspension, close ratio gearboxes and a single seat but didn't have more power, due to Japanese motorcycle manufacturer's power restriction code. The SP's are claimed to be even harder work on the road than a standard GSX-R400. Not that surprising knowing that it was designed for racing only. Available colors: Blue/White, Black/Red/White, Black
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