Carburetion is good, with no flat spots or hesitation as the bike launches down the road to show 70 mph in first gear and 100 mph in second. All this power is delivered through a five speed gearbox that was still a bit tight but performed faultlessly throughout the test. Keep on redlining it in each of the gears and you'll find yourself heading for what feels like a world landspeed record with an indicated 170 mph showing on the dials flat out in top gear. Yamaha claims the fairing fitted to the Ace is the slipperiest ever worn by any of their street bikes, with a drag coefficient of only 0.29 -- very close to their YZR500 GP bike -- but it seems to do little to improve top speed, or fuel consumption for that matter. At the speeds the YZF is capable of the bike develops a thirst that will have you calling in at most of the gas stations along the journey; while managing a sensible 33 mpg at regular speeds, this drops to less than 23 mpg at speeds above 120 mph. Riding two-up, you might not even reach the next gas station.
The best strategy for avoiding frequent gas stops is to take to the backroads, since, capable though it is at long distances on the freeway, it is even better in squid territory. One of the objectives of the design team was to come in lighter than the FZR1000, and at 198 kilos (435 pounds), the Ace weighs in as the leanest litre class bike. This, coupled to the shorter wheelbase chassis (only 10mm more than the YZF750), has done wonders for the handling of the bike, which now cuts through the corners as quickly as one of the sports 600s. But it takes a little getting used to, as you are initially aware of the mass of the bike and the wide fuel tank makes it difficult to grip with your legs.
But put this out of your mind, flick the bike hard into a bend and it will track through without dramatics. Although steering might be judged a tad slower than the GSXR750 and the CBR900RR, it's more than adequate, and the bike feels very stable and settled. The Dunlop D204 Sportmax IIs suit the bike well, giving good grip, sliding some under radical conditions, but without the feeling they will let go completely. Blitzing corners is made even more fun by the phenomenally powerful four-piston front brake calipers on 298mm rotors that are better than the YZF750's and Kawasaki ZX7R's binders. Leave the gas on a little too late and you'll still be okay, although mid-corner braking will have the bike wanting to stand up some and hustling it through the rest of the corner is more work than usual. The twin-pot brakes on the rear were great, providing heaps of feel and not cramping a foot throughout either of our tests.
It seems that the fashion for upside-down front forks is waning; the YZF comes equipped with conventional telescopic front forks. At 48 mm in diameter, they are plenty stiff for any street-legal tire. Full adjustment of bump and rebound damping, as well as the usual spring preload adjustment, is possible on both forks and rear shock. The suspension comes set up a little on the hard side, but can be softened out for relaxed rides over uneven surfaces. In fact the complete bike is remarkably relaxed for a 145 bhp sport machine, making lane splitting through the morning gridlock and the slow trickle through suburbia less of a pain than could be expected. Throttle and clutch are light, the brakes one-finger sensitive and the steering light even at low speeds.
One thing that did bother us was the vibrating mirrors; an important consideration on a bike like this if you intend to keep your licence. Steps have been taken to minimize the discomfort vibration may cause the rider, with large weights on the ends of the bars and rubber grips on the footrests. These work well, with the rider aware of the vibration, but not uncomfortably so. The seating position and relationship to the bars and pegs is quite comfortable, striking a good balance between the bike's intended roles of sports riding and touring.Page 2So is the Thunderace king of sport bikes? For many it is. The combination of awesome mid-range grunt, with excellent handling and braking as well as a good roomy riding position make it the best all-round hyper-sports package available (for a comparison of six open-class bikes, check our 1995 Open Sportbike Shootout). At the same time the Fireblade and the new GSXR will continue to sell well, but mostly to those more sharply focused on the sports label and not interested in any compromises in their demand for street racers. Yamaha, however, might have taken the first step in sewing up the sports market once and for all. With the YZF750 reportedly due for an upgrade in '97, the Ace has given them the freedom to produce a street racer that will have headbangers the world over queuing up to buy. Judging by the achievements of the Ace design team, that bike will be stunning.
Manufacturer: Yamaha Model: 1996 YZF1000R Thunderace Price: $15,750 (Holland), $15,999 (Australia) Engine: Liquid-cooled, 4-stroke, DOHC 5-valve, parallel 4-cylinder Bore x stroke: 75.5 x 56.0 mm. Displacement: 1002 cc Compression Ratio: 11.5:1 Carburetion: Mikuni BDSR38/4 Transmission: 5-speed Claimed power: 145 HP (106.7kW) @ 10,000 rpm Claimed torque: 11 kg/m (108.3Nm) @ 8500 rpm Wheelbase: 1430 mm Seat Height: 790 mm Fuel Capacity: 20 L Claimed dry Weight: 198 Kg. (436 lbs)Riding Impressions:
There are many facets to the excitement of riding bikes and every rider will attach a different level of importance to each of them. For me, the critical characteristic of a bike is its ability to flip-flop through a fast set of bends -- exhilarating when you get it right. In the past, this has been the domain of the sports middleweights, their light steering making squid territory a joy to visit. The times are changing and the Ace, and a couple of rivals, can blitz a set of bends with the best of them. Combine this with an engine that has such a strong mid-range power delivery and we may be looking at the perfect bike. Next time I come to trade bikes, the Ace will definitely be on the short list.2. Ken Edwards, Australian Desk
Overall this is one of the best motorcycles I have sampled. It is more than able to be punted hard with the go fast crowd and for the first time on a liter class bike, is not left wanting in the corners. Additionally, I found it comfortable on a long ride. Value for money is great as the bike can take on so many roles and can perform admirably in all of them. Yamaha is on to a winner here, and I'm seriously considering trading in the old 1995 YZF750 on an Ace (providing the minister of finance -- my better half -- allows it!)3. Nigel Wines, Guest Tester (Australian Racing Commentator)
Handling and brakes are as you'd expect for such a horny bike. The light weight of the bike came through and it was quite nimble in the Cotter Twisties. I did find the front suspension a bit stiff probably because of the newness of the bike, and it needed a set up more suited to me. Still, it was a bit disconcerting to have the front wheel shaking its head over some of the bumps when you have a bit of power on; I had to get out of the seat a few times. The YZF1000 is a bike that only skilled, competent, experienced riders can enjoy -- anything less, and you'll just scare yourself silly. Or worse. If you haven't got experience on big bikes and raced a bit, go for something else.