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- Mar 22, 2021
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New BSA Scrambler concept showcased at Motorcycle Live
The new BSA Scrambler has been revealed at Motorcycle Live, featuring a 652cc engine, and tyres and suspension which can take it also off-road.
Originally a drag racing thingWhat is the wrapped exhaust pipe all about? When did this start?
I doubt one of these would ever go off-road tbhNot into the liquid cooled off road bikes , I realize they gotta do it for environment , but lots older A/C dirt bikes around …
Etc...... Man bun...?Originally a drag racing thing
Now a hipster thing along with brown seats and beard oil etc
YepEtc...... Man bun...?![]()
Bottom of a pair of jeans that are turned upTurnup ???
Dirt bikes are the modern scramblersToo heavy for a Scrambler but all modern Scramblers are the same, should use the Victor or Catalina name.
Two purposes. Heat protection and supposedly to improve gas evacuation. Ceramic coating is a better alternative so it's purely aesthetics. Personally, i'd like it better with Titanium hi-risersWhat is the wrapped exhaust pipe all about? When did this start?
Originally a racer thing.What is the wrapped exhaust pipe all about? When did this start?
HIGHLY TUNED Two stroke engines, hot pipe vs cold pipe, have significant scavenge efficiency differences.Originally a racer thing.
2 benefits:
1. Keeps gases hot, hotter gasses have more volume, so if more volume goes through same space, it has to go faster. Gas velocity was therefore a reason for its effects on pressure pulses etc. But this clearly only matters in very specific circumstances.
2. Reduces radiated heat to other components so aids engine / oil cooling etc. This is mainly a benefit on fully fairerd bikes and also race cars and was the main reason I used to wrap race pipes.
It can also reduce noise by a db or 2, which can be a big benefit on a race bike struggling to meet the noise limits.
As Baz said, it’s now a hipster styling thing whereby exhausts are wrapped for no actual reason or benefit at all, apart from styling, and that in itself is ironic as it’s often badly done and looks sh*t !!
As far as I know, it was never a serious scrambler mod.
I agree with Baz ref styling on this bike, they’ve ignored / wasted an opportunity to style it inspired by past scrambler bikes and competition success. They cudda really leveraged this history with big black and white photos etc plastered all over the walls and website… like Triumph do so well.