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Difference between revisions of "Aprilia AF1 Futura"
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It seems almost unnecessary to say that the Futura will eventually be the only AF1 model. Short of selling the bike with its bolts already lockwired, or perhaps with a roll of duct-tape and a couple of spare fairings, it’s hard to imagine how Aprilia could come out with a ‘sport production’ version of this. (No doubt they could if they tried, though, and perhaps they will if their baby starts getting whipped on the track.) | It seems almost unnecessary to say that the Futura will eventually be the only AF1 model. Short of selling the bike with its bolts already lockwired, or perhaps with a roll of duct-tape and a couple of spare fairings, it’s hard to imagine how Aprilia could come out with a ‘sport production’ version of this. (No doubt they could if they tried, though, and perhaps they will if their baby starts getting whipped on the track.) | ||
The main difference between the Replica and Sport models is the | The main difference between the Replica and Sport models is the carburetor, which is a Dellorto that grows from 28mm in size to 34mm for the competition bike. The Futura gets a slightly modified version of the bigger fuel-bucket, natch, which helps push claimed output up one whole donkey from the Replica’s 32.8 to 33.8bhp precisely, at 11,000rpm. | ||
Compression ratio is actually reduced slightly, from 15:1 to 13.6:1, but the rest of the motor stays virtually unchanged. | Compression ratio is actually reduced slightly, from 15:1 to 13.6:1, but the rest of the motor stays virtually unchanged. | ||
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On the other side of the engine the Sport’s side-mounted airbox is replaced by a more central chamber that sits between the top tubes of the bolt-on rear subframe, and is shrouded by plastic and fed by two long plastic ducts running back from the nose of the fairing. | On the other side of the engine the Sport’s side-mounted airbox is replaced by a more central chamber that sits between the top tubes of the bolt-on rear subframe, and is shrouded by plastic and fed by two long plastic ducts running back from the nose of the fairing. | ||
The main frame is a modified version of Aprilia’s | The main frame is a modified version of Aprilia’s aluminum alloy twin-spar job, and is so neat and sturdy-looking a piece of kit that it wouldn’t disgrace something from down the coast at Bimota, let alone a puny mass-produced 125. The main extrusions now bulge out a little on their route from steering head to swing arm pivot, and an alloy plate has been added on each side of the subframe, presumably for reinforcement. But the most obvious difference is that the satiny main spars have been left on view instead of covered by bodywork as they were before. | ||
Being an Aprilia, the only way that this 125cc motorcycle would not have featured upside-down forks and a single-sided swing arm is if the Noale firm’s designers had found a way of equipping it with hub-centre steering, a single-sided front fork, a hubless rear wheel or something even more weird and over-the-top. (Unfortunately, Aprilia wouldn’t reveal what tablets their creative crew are fed on.) | Being an Aprilia, the only way that this 125cc motorcycle would not have featured upside-down forks and a single-sided swing arm is if the Noale firm’s designers had found a way of equipping it with hub-centre steering, a single-sided front fork, a hubless rear wheel or something even more weird and over-the-top. (Unfortunately, Aprilia wouldn’t reveal what tablets their creative crew are fed on.) | ||