00:00BMW just pulled off something pretty wild in the motorcycle suspension world.
00:05Their new dynamic suspension adjustment, DSA, tech, debuting on the 2025R1300R Roadster,
00:13lets you feel like you've swapped in stiffer or softer fork springs, just by hitting a switch.
00:19No tools, no garage time, no fuss. Let's break it down in a chill, easy-to-grasp way.
00:26Brain weight. Suspension tech? Tell me why I should care.
00:31If you've ever ridden a bike that felt too soft under hard braking, or too stiff on a rough road, you know the struggle.
00:38Traditional electronic suspension systems mainly adjust damping, how fast your fork moves up and down.
00:45That's cool, but it doesn't change how stiff your spring actually feels.
00:50Spring rate, or stiffness, has always been something you need to physically swap out at the shop.
00:55Until now.
00:57Wrench enter DSA, BMW's fork wizardry.
01:01BMW's DSA system adds a brand new trick.
01:04It mimics changing the spring rate itself, without physically changing the spring.
01:09Basically, you get the feel of swapping to a softer or harder spring, depending on your ride mode.
01:16Here's the clever bit.
01:17Inside the fork, there's an external oil reservoir.
01:21Normally, when the fork compresses, oil flows into that reservoir.
01:26But with DSA, BMW added a valve you can close electronically.
01:31When closed, oil can't go to the reservoir.
01:33It's forced to push up on a piston under the spring.
01:37That piston pushes against the spring from below, compressing it from both ends.
01:41So, instead of just squashing the spring from the top like usual, it's now being worked from both ends.
01:47That makes it effectively stiffer.
01:50Input number's a little science, but not too much.
01:52A spring stiffness, a.k.a. spring rate, is measured in something like 10 newtons per mm.
01:59That means it takes 10 newtons of force to compress the spring by 1 mm.
02:04But with DSA's dual-end compression, the spring gets slightly more compressed for the same amount of fork travel.
02:11Say your fork compresses 1 mm.
02:13It might actually compress the spring one.
02:161 mm inside.
02:18That small extra compression means you need more force to move it.
02:22Result?
02:23It feels stiffer.
02:25And the best part?
02:26This is all done on the fly, by toggling ride modes.
02:30Motorcycle comfort when you want it.
02:32Performance when you need it.
02:35Whether you're
02:35Cruising solo on smooth roads.
02:39Too up with luggage.
02:40Hammering it through twisties.
02:42You don't have to pull out the spanners or tweak preload collars.
02:46Just tap the ride mode button and let DSA do its thing.
02:50Want a plush ride for touring?
02:52Select comfort mode, and the fork softens up.
02:56Want better front-end support for braking hard or hitting corners?
03:00Switch to sport mode, and the fork tightens up.
03:04How is this different from preload?
03:07Great question.
03:08Here's the deal.
03:10Preload just compresses the spring before it starts moving.
03:13It lifts the bike's ride height, but doesn't actually make the spring stiffer.
03:18Spring rate, on the other hand, determines how hard it is to compress the spring while riding.
03:24Preload changes your starting point.
03:26DSA changes how stiff the fork feels throughout the ride.
03:30Big difference.
03:31Nut hand bolt does this add a lot of weight?
03:34Nope.
03:34DSA's tech adds just a few hundred grams.
03:38A valve, a cable, and a small internal cylinder.
03:42Practically nothing in motorcycle terms.
03:45Hammer and wrench, what about the chassis?
03:47The 2025R 1300R gets more than just smart suspension.
03:52It's also rocking a brand new frame setup.
03:55Steel mainframe for strength.
03:57Aluminum suffering for weight savings.
04:00Thinky face, will it come to other BMW bikes?
04:03Right now, it's just on the R1300R.
04:07But BMW says they're looking at rolling it out to more models.
04:11It might show up on something like the S1000R or S1000XR next.
04:17Interestingly, they're cautious about putting it on the S1000RR Superbike,
04:22since track-focused riders tend to want full manual adjustability.
04:26But who knows, maybe we'll see a race spec version in the future.
04:31Speechelune final thoughts.
04:34BMW's DSA tech is a big leap in suspension design.
04:38By letting riders simulate different spring rates on the go,
04:41it combines the best of comfort and performance,
04:44all without needing to mess with tools or settings manually.
04:48It's smart, subtle, and surprisingly simple in concept,
04:52yet could totally change how we think about ride quality and tuning.
04:56Whether you're carving canyons or cruising country roads,
04:59DSA might just become your favorite riding companion.
05:02Not the traditional strgal, but I West gets a pair of dual- analyze vehicles on the west end.
05:07It gives you double-affigvädependence.
05:10I'm sure there's something a different way to see right now.
05:11Let's move on to return to a boat.
05:13Theם tuning is a little bit over regardez and since this is this process.
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