So here is a curious one to pop up on Kickstarter. How to lessen road vibrations before they impact the rider in as few parts as possible. Those of us here at BikeRumor with backgrounds in the shop have seen tons of customers complain about seat discomfort. Sometimes it was about a recent back procedure, other times it was simply a pain in their butt. The one common thread though, was that there weren’t a ton of different options besides thickly padded saddles, so it’s nice to see another take on the issue.

The designers and engineers behind the new Rinsten Spring have managed to develop a device that does that with just five individual parts, and on top of that the design will work on pretty much any bike out on the road or trail that has a few extra cms of seatpost showing. The concept and execution are both incredibly simple – Rinsten has created a looped leaf spring that clamps inside the saddle clamp of your existing seatpost, then cantilevers your saddle on a second rail clamp about 6cm higher up…

 

It doesn’t get much more simple…

The leaf spring that supports the saddle (and this the rider) is a simple loop of spring steel that is rated for rider weights up to 150kg/330lb.

Then it just has a 2-part alloy clamping mechanism and 2 bolts that hold it together. By adjusting how far back from the bend the two clamps are attached, you adjust the arm of the cantilever, and thus the stiffness of the spring.

Sure there isn’t a huge amount of damping in a steel spring (at least not unless it is exceeding its elastic limit, which this shouldn’t do before 400kg based on their test data), but this could even out some rough and regular vibration. It also might be able to help riders who have some other biometric or pedaling issues.

In any case, it is a simple device at a reasonably affordable price that will likely deliver a ride much like a classic springer saddle, all while working with your current saddle and seatpost.

If that sounds interesting give their Kickstarter campaign a further look. At just $25 for the earliest bird backers and topping out at $31 per spring it is an affordable experiment to make. And one that they are backing with a full 30 day money back satisfaction guarantee, and a lifetime warranty if you keep it. The crowdfunding just went live today and will run for a month. It’s on its way with 17% of its funding goal being achieved within the first couple of hours live. If they get their funding, you should have a spring in your saddle by the end of July 2017.

Rinsten.com

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53 Comments
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Juanny
Juanny
4 years ago

So, is the idea to have the saddle at 0-degrees once under the load of the rider’s weight? How is that done? Trial and error?

46541156
46541156
4 years ago
Reply to  Juanny

I would assume that’s how you would do it. It would be rather simple.

blah blah blah
blah blah blah
4 years ago
Reply to  Juanny

no different to how you would normally set your saddle anyway, IE adjust till it feels right

Dude
Dude
4 years ago

But do they have a gravel-specific version?

Slowman
Slowman
4 years ago
Reply to  Dude

You would move your saddle further along the spring to get more movement if that is what you want.

Other Aaron
Other Aaron
4 years ago

Granted it has the price advantage. but you won’t fix the problem until you get a Brooks

killa cam
killa cam
4 years ago
Reply to  Other Aaron

…and then deal with impotence.

killa cam
killa cam
4 years ago

Assuming no one pulls up on clipless pedals unless climbing, would this reduce power output? I know a rear shock would, but is it different when it comes to butts? I know the iso speed decoupler is supposed to do the same thing…

Jose
Jose
4 years ago

Cross is coming!

BalwmereEmo
BalwmereEmo
4 years ago

But will a bottle fit?

Colin
Colin
4 years ago

No one is wearing a helmet in the whole video. Seriously?

Rustilicus
Rustilicus
4 years ago
Reply to  Colin

It’s called “Freedom”

gringo
gringo
4 years ago
Reply to  Colin

(deleted), next time that you want to whine about the way others ride, perhaps you should watch the whole video first. Plenty of helmets to be seen.
Why do Americans always cry about helmets in videos?

Paulette
Paulette
4 years ago
Reply to  gringo

Thank you.. maybe want to ask if they want cheese with that whine…. Americans complain about pictures on cereal boxes.. lol. And I am American!!

Tomi
Tomi
4 years ago
Reply to  Colin

None of the helmetless riders in that video were riding faster than an average runner. Do you put an helmet when you run and would you advise runners to wear helmets too ?

george
george
4 years ago
Reply to  Tomi

so by your logic kids shouldn’t wear helmets cause they aren’t riding faster than runners. Sure that makes sense. Send everyone out to play in traffic without a helmet.

DD
DD
4 years ago
Reply to  Colin

Cmon…

Steve Gaucher
Steve Gaucher
4 years ago

I’m astounded nobody has thought of this already.

Chris
Chris
4 years ago
Reply to  Steve Gaucher

They have. It’s been done before. All that’s old is new again.

John Gustafson
John Gustafson
3 years ago
Reply to  Steve Gaucher

It has, that is why they are not ubiquitous. Bicycle gimmicks have come and gone over the last century. Shaft drive is one example.

Anonymous
Anonymous
4 years ago

It’s a spring saddle converter.

It would see slightly safer if installed upside down. I’ve seen lots of saddles slide back, not so many slide forward.

satisFACTORYrider
satisFACTORYrider
4 years ago

do u even freeroad, bro?

chase
chase
4 years ago

There are several other post suspension designs currently out there for purchase.
I don’t think I want my saddle rotating back at an angle as it compresses. That would be very odd. Not to mention the twisting you would get into mounting and dismounting or putting a foot down. Needs more control to keep it level and in a single plane. This is for sure simple. Too simple if you ask me.

Look at this- https://www.youtube.com/watch?v=xWtnLjbXdus

Seraph
Seraph
4 years ago

I expect to be seeing these in the pro peloton come Tour de France time.

Pete
Pete
4 years ago

Title should have been: “Rinsten Unveils First Day Of Spring”.

cracked frame
cracked frame
4 years ago

I just came here for the comments.

Ed Ng
Ed Ng
4 years ago

Damping? None. So…boing boing boing boing boing…

Joe Maki
Joe Maki
4 years ago

I’m interested because I’ll finally be able to get my saddle back far enough.

Jami
Jami
4 years ago

Don’t know if this was even made up by cyclists or just by engineers looking to throw out an easy product. Nobody wearing a helmet and all the cycling in that video was super impractical and awkward. Not saying it’s a bad idea, just bad marketing.

Colin M
4 years ago
Reply to  Jami

Jami, did you not see the pack of 10 roadies go by in the video? They were all wearing helmets.

BTW I love getting saddle sores so I’m buying this RINSTEN SPRING. Such high quality!

LiteBounce
LiteBounce
4 years ago

Waiting for the carbon version

Rippin Ronnie
Rippin Ronnie
4 years ago

Hey lets stick a bottle cage between our seatpost and saddle and sell in on Kickstarter. Or sell it for 19.95 and have the Slap Chop guy promote it on QVC

Slacker
Slacker
4 years ago

And the photos above, look how well the seat height is adjusted, her legs are at the perfect angle, these guys know cycling.

Jeff the pastry chef
Jeff the pastry chef
4 years ago

Will it work on my Domane?

RobertW
RobertW
4 years ago

No damping, so a big hit will smoothly throw your butt into the air instead of suddenly doing it.

Bill
Bill
4 years ago

I think I just realized sometimes BikeRumor posts stupid things pretending to be news as a deadpan way of making fun of them…

Dtronn
Dtronn
4 years ago

I think it would be effective for an occasional large bump.. or to soften some hard chatter.
There wouldn’t be any boing boing boing … hence the ability to shorten the spring arms.. think before speak.

olo1234
olo1234
4 years ago

This is just so plain stupid that I stand in awe that nobody have invented it before.

Mikey
Mikey
4 years ago

I actually think this in an ok idea. It also gives huge fore-aft adjustment possibilities. But the price is crazy for a bent steel tube…

Oli
Oli
4 years ago

Seriously, none of these riders are wearing any form of ballistic protection. You’re statistically more likely to die from gunshot wound in USA, than from head wounds sustained whilst riding a bike. These people are just asking to get shot!

Darryl Duck
Darryl Duck
4 years ago

Sounds like a good lycra tearer.
Something that wide is guaranteed to hit the legs when pedaling.

Paul Kersey
4 years ago

That Trek is carbon!

Scrotus
Scrotus
4 years ago
Dan
Dan
4 years ago

Going to buy 2 for my road bike and install between the hubs and frame/fork. Cheap way to make a dual suspension bike. The mtb industry is going to go out of business.

Andy
Andy
4 years ago

This is an inelegant hack. Functional, but a hack nevertheless.

Jeff the pastry chef
Jeff the pastry chef
4 years ago

The lugs on that trek are corroding, my 2300 went the same way a few years ago

Paul Kersey
4 years ago

The Trek has been rode hard, and put away wet!

MBR
MBR
4 years ago

Make a much lighter Ti version and never worry about it failing from fatigue stress.

Jeff the pastry chef
Jeff the pastry chef
4 years ago

Before☹️, after.

Jeff the pastry chef
Jeff the pastry chef
4 years ago
Vincent
Vincent
4 years ago

Looks interesting, but is there lockout?

Steveroot
Steveroot
4 years ago

I have one on my Tern Verge S11i (folder with 20″ wheels) and have ridden it to work for 2 days (about 15 miles). I have it set for a fairly high spring rate to match my weight. It actually makes the saddle feel slightly “plush”. Although there is no damping in the mechanism itself, there is no “pogo-sticking”… damping is effectively provided by the rider’s (m)ass. The saddle flattens out as soon as I sit on it, and does not feel as if it is rocking side-to-side. I have not snagged my (work) pants on the prongs, and my legs do not come anywhere near the spring. It’s a bent steel *rod*, not a tube. I can imagine that this is not something that *everyone* will want, but it is not a gimmick.

Keith Butler
4 years ago

A functional and sound design, I want it yesterday…