RINSTEN SPRING
Universal Bicycle Shock Absorber
Protecting your knees and smoothing the ride
Rinsten Spring Set
Complete set with mounting plates,
hexagon key and safety caps
$
49
This Spring is a mechanical shock absorber with adjustable stiffness, which can be adapted both for city and all-terrain cycling. Easy to install, easy to adjust. No moving parts. Color: black.
5 Year warranty.

Suitable for riders of all ages, from 10 to 140 kg (30—300lb)
For both, city and all-terrain bicycles

Health and comfort, not just another accessory
Because of a seated position, a cyclist can't use feet and lags as a natural shock absorber
A group of scientists from The University of the West of England, led by John Parkin, PhD in transport engineering and his colleague Sainte Cluque, E., began research "The impact of vibration on comfort and bodily stress while cycling"

he scientists discovered that the surface condition is the principal factor that affects the vibration value. It turned out that in almost one hour of cycling the rider is exposed to vibration comparable to that of a tractor operator during half a day of field work
Adding comfort
Our spring damps vertical and lateral impacts and vibrations and adjusts to pelvis bending during cycling. Thanks to our spring your back literally "sticks" to the seat and doesn't shift. This allows you to apply less effort when riding and avoid injuries. This shock absorber makes your cycling comfortable and keeps your body healthy

Hardness of the spring can be adjusted to your weight, riding style and terrain you cycle on


Can be Installed in under 2 minutes and readjusted in 30 seconds. No additional tools required
Rinsten Spring is shipped with hexagon key and that is all you need to install.
Can be mounted on 99% of all modern bicycles
For me it's personal
I got back on bike after a 10-year break. I bought a high-end bicycle of a well-known manufacturer. It surely had an excellent sports seat. However, after long rides I started to feel uncomfortable — I felt pain in my arms and back. I've tried every exsisting solution on the market.
Having failed to find optimal solution on the market, I decided to develop a seat post that would be simple and reliable, easily adjustable for any weight, any road and and bicycle and make every bike ride enjoyable. To do this, I set up a team of engineers and mechanics.

We've spend 3 years on research, tests, and sample production
Free Shipping within the USA and Italy.
Worldwide Shipping: $5


Project history
1
2015
Idea and first 5 working prototypes after 18 attempts
It was a long way from draft sketches on paper to set of complete prototypes for endurance testing
2
2017
Kickstarter campaign:
900% funded
We were lucky to gain huge support from our backers, the project was funded
3
2017—2018
Production and fixing production issues
We had a bumpy road with numerous calls and countless trips to the factories, to get reliable quality control and production set-up
4
2019
Final product is available
on the market
As of January 2019, we have made our project available, with the lifetime warranty and worldwide shipping

5 year warranty,
60 days money back guarantee
Our Rinsten Spring comes with a 5-year guarantee, so if something happens to your spring within these years, you can easily exchange it for free. We will send you a new one and pay the delivery fees.

Don't worry if you are not completely satisfied with your new Rinsten Spring or it does not fit perfectly for you. You can return it within 60 days of receiving it. All returns must be unworn and in original packaging. Refunds will be issued promptly to original form of payment. Please note that you will have to pay the return postage to us.
Rinsten Spring Set
Complete set with mounting plates,
hexagon key and safety caps
$
49
This Spring is a mechanical shock absorber with adjustable stiffness, which can be adapted both for city and all-terrain cycling. Easy to install, easy to adjust. No moving parts. Color: black.
5 Year warranty.

Suitable for riders of all ages, from 25 to 140 kg (30—300lb)
For both, city and all-terrain bicycles

Delivery
Free Shipping within the USA and Italy
Worldwide Shipping: $5


We will email you once your order is received in our system and is being processed. You will receive another email confirming when your order has been shipped from our warehouse and you will get the tracking number to get your order.

The order is usually sent from our warehouse in 2-3 days.

Feel free to contact us if you have any questions or suggestions. We really love to hear your thoughts about our product and see how you use it
Rinsten, Redwood- City, CA
office@rinsten.com
All photo and video materials belong to their owners and are used for demonstration purposes only. Please do not use them in commercial projects.
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