extend the frame of a bike — or specifically a sportbike , built for speedup , speed and corner — is sometimes done for purely aesthetic purposes . A stretched cycle looks a batch dissimilar from its factory design , and the look is pop in theaftermarket bike community .
But for some riders , stretch a sportbike has a purpose beyond looks . Stretching a bike ’s frame dramatically affects the mode it ’s ridden . The mechanical components might outride the same , but a stretched sportbike handgrip other than and requires the rider to adjust locating . Sounds like it could be kind of a pain in the neck , does n’t it ? And expensive ? So why would anyone importantly modify the skeleton of a absolutely good motorcycle ?
Because it helps the bike go faster for racing , assuming it ’s done right . More specifically , it does n’t make the wheel faster from an gain in H.P. or torque , but by change how the bicycle interacts with the road and the driver .
Stretching a sportbike lowers its stance , which can be further lower by additional break modification . A lowered position improves adhesive friction , entail less big businessman is emaciate and more power is uncommitted to push the bike forward . Extended baseball swing arms — the main part of the rear suspension , holding the rear axle — help prevent the bike from going into wheelie position on takeoff , which can happen unintentionally .
While some rider care to modify their own bikes , some expert say is best for an experient shop class to do the body of work , because there ’s a good deal of room for errors . For example , render the tubes — known as crotch — at the front of the bike that defy the front cycle . It ’s potential to switch those out for retentive forks , which will achieve the spirit some riders are going for . But for racing , it ’s not a good idea . It touch the rake ( or slant ) of the bike ’s direction axis , which involve to be optimize for hie . This can transfer the path the engine and transmission interact with the residuum of the bike , maybe make the bike unsafe and ineffective . It also can change the way the rider mounts the bike and balances on it , which can make the bike slower ( by increase drag ) and more unsafe ( by throw off the passenger ’s balance ) .
In other words , adjusting just one part of the frame is a bad idea . The effects of the modification have to be view , and then other changes made elsewhere . Here ’s an alternative to stretching : corrupt or build a completely custom frame , designed for big - picture paragon .
