Dual-Position Seatpost
Test bullet point
- Turn your existing bike into an aero bike
- Switch positions on the go
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Description
The patented Dual-Position Quick Adjust Aero Seatpost lets you ride a true aero position on a standard road bike, without sacrificing your normal road position. Along with the Quick-Release Aerobars it provides the benefits of a triathlon or time trial bike without the additional bike or price tag. The key to riding powerfully and comfortably is proper saddle position and since you can switch between road and aero positions on-the-fly while riding, you can always choose the best riding position for every part of your ride.
Benefits of Quick Adjust Dual Position Aero Seatpost
• Transform your current bike - switch from road to aero position on the bike you already own
• Ride with ease - no more time and energy wasted switching from road bike to aero bike
Details:
• Linkage design lets you switch between road and aero riding positions seamlessly.
• Choose the best seatpost position for every single climb, flat, or descent
• Maintain proper leg extension in both road and aero riding positions
• Saddle moves forward 50mm, corresponding to approximately 4 degrees of effective seat tube angle change
• Aero road riding position optimized for proper handling on a road bike
• Simple, durable two-bolt saddle clamp allows infinite saddle tilt adjustment and reliable clamping
• 16mm rearward setback (road position)
• Check technical specifications for compatibility
What's in the Box:
• 1 x Dual-Position Seatpost
Instructions
Download Instructions (PDF):
Instructions - Dual-Position Seatpost
US Shipping Info
- Free Shipping with tracking – Applied to all orders under $74 USD.
- Economy Shipping with tracking – Orders over $74 USD qualify for free shipping.
- Economy Shipping with tracking – 1-3 business days after processing time.
- Orders ship via our third-party fulfillment service, that will select the most efficient carrier based on your location. Standard delivery typically takes 3-8 days, though in some cases, it may extend up to 15 days.
- Order processing time is 1-3 business days.
- If you order multiple items, they may be shipped from separate warehouses and may not arrive at the same time.
Different bikes sometimes have different seatpost diameters. The ShockStop Seatpost is 27.2mm in diameter, so if your bike's seatpost is larger, you'll need a shim to adapt our seatpost to your bike's frame. Don't worry though, the shims are super-lightweight and essentially invisible once installed.
Not sure what size seatpost you have currently? There are a couple different ways to find out.
• Most seatposts have the diameter printed somewhere near the bottom of the post. You'll need to remove the seatpost from the bike frame (mark your existing seatpost height with a bit of tape before you remove it so you can replace it easily), and look for a number like 27.2, 30.9, or 31.6 (etc.). That is the diameter of the post.• If you know the make, model, and year of your bike, you may be able to look up the seatpost diameter online. Feel free to shoot us an email at info@redshiftsports.com - we'll see if we can help out.
• Ask your local bike shop - they'll be able to accurately measure your bike's seatpost.
Non-compatible posts: Unfortunately, if your bike's seatpost is smaller than 27.2mm (for example, the 25.4mm posts found on some recent model Cannondale Synapses) our seatpost is currently not compatible with your bike. Likewise, if you have a bike with an aero/oval/non-round seatpost, or if your bike has an integrated seatmast, the seatpost is also not compatible.
Customize your position on the go. Maximum efficiency.
One Bike to Ride Aero or Standard
Change from a standard road saddle position to an optimized aero position on-the-fly while riding, and attach or remove the aerobars in a few seconds without any tools so you can choose the best setup for every ride.
Maximised Speed & Efficiency
Aero positioning translates into more power transfer and reduced fatigue, so you can go farther and faster with the same energy.
Optimised Fit & Control
Precision-engineered geometry ensures stability, comfort, and total control, whether you're racing, training, or riding long distances.
Redshift trusted by
200,000+
Vivian S.
We bought 2 sets one for my husband and one for me. They are comfortable to ride with and I cannot recommend them more highly. Love love love them
William c.
Rode today my new Quick-Release Clip-on Aerobars great relief on the back and hands.
Oleksandr S.
I chose this system to add resting positions for my hands during long-distance trips, as well as to use during long rides against the wind.
Gunther B.
It's really cool to combine two characters in one bike with just the two positions of the seatpost.
Reinhold S.
For me it’s not just performance, for me it’s more variety in position
Edward D.
The dual-position seatpost works really well and is extremely simple to use. Using it with aero bar extensions & the ability move the saddle slightly forward.
As seen in
Perfect For
Time Trials & Triathlons
Maximise speed with an optimised aero position.
High-Speed Road Cycling
Reduce wind resistance for faster, more efficient riding.
Competitive Racing
Gain every aerodynamic advantage when it matters most.
Fast-Paced Group Rides
Quickly remove your bars or flip your riding position when you need to.
Join the ride @redshiftsports
