There's nothing better than an Orangina after cheating death with Digger.
For the Gee-Wiz files: one-sided carbon linkage fork
Not sure id want the trail for my fork changing as the suspension cycles? Cant imagine that would be good at all for the handling....
Posted by: shoreboy
Not sure id want the trail for my fork changing as the suspension cycles? Cant imagine that would be good at all for the handling....
The trail on a telescopic fork changes as the fork compresses and that increases head angle, which decreases trail. Unless the rear suspension also compresses a similar amount.
Posted by: andy-eunson
Posted by: shoreboy
Not sure id want the trail for my fork changing as the suspension cycles? Cant imagine that would be good at all for the handling....
The trail on a telescopic fork changes as the fork compresses and that increases head angle, which decreases trail. Unless the rear suspension also compresses a similar amount.
Agreed. I dont know alot about this system (and it sounds like the inventor doesnt really know either), but it looks like trail changes would be greater with this system than a traditional telescopic fork just due to the wheel travel path?
Its a lefty and lefties freak people out because they look down at the missing leg or maybe the one that is there and can't ride but if you looked at your front wheel all the time you would have trouble riding any bike
leading link front suspension has been around for a very long time, it came on offroad bikes and BMW touring bikes, I have never ridden one but I know one peculiarity of that design is when you hit the front brake instead of the suspension diving it rises
Posted by: shoreboy
Not sure id want the trail for my fork changing as the suspension cycles? Cant imagine that would be good at all for the handling....
A fairly typical enduro bike (150 mm travel, 65° head angle) has a trail of 120 mm at static (unloaded) height. In full pitch (front bottom-out, no rear compression, such as when hitting a hard transition), the trail is reduced to 66 mm (minus any fork flex). To make matters worse, the head angle steepens to 72.5° and you lose over 50 mm of front-centre length. These numbers are almost precisely those of a road bike - or, if this enduro bike was a size Medium or Large, it just turned into a size XS cross-country race bike with an especially steep head angle. Hit an ugly transition and your bike reacts like it's trying to kill you.
A linkage front end separates steering/handling from suspension behaviour. Another benefit is that you can ride a short and nimble bike that's fun during normal riding, yet retains more length than a downhill bike or Geometron when you need the length. A well designed linkage fork or frame has so much more potential than a telescopic fork.
Posted by: XXX_er
[...] one peculiarity of that design is when you hit the front brake instead of the suspension diving it rises
This isn't inherent to any particular design - and in many cases, it's not even true, it just feels like the front end rose because you're so used to it diving. The kinematics can be tuned for as much or as little anti-dive as desired.
Last edited by: R-M-R on June 19, 2017, 1:44 p.m., edited 3 times in total.
I think it depends on where you anchor the brake, i took another look at this guys design and he anchors the brake caliper to the fork instead of the swingarm for a full floating hub design so the brake would not affect the suspension whereas the old designs were pre-disc brake with the backing plate anchored to the swing arm
http://motorbike-search-engine.co.uk/classic_bikes/1969_sachs_125.jpg
69 sachs these ^^were popular dirt bikes back in the day before the japanese invasion
Last edited by: XXX_er on June 19, 2017, 7:19 p.m., edited 1 time in total.
amp research and whyte are rolling over in their graves.
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