Dual-Position Seatpost
- Regular price
- $199.99
- Sale price
- $159.99
Dual-Position Seatpost
- Regular price
- $199.99
- Sale price
- $159.99
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
| Weight | 400 g |
| Seatpost Diameter (A) | 27.2 mm |
| Seatpost Length (B) | 350 mm - (bottom to clamp centerline) |
| Minimum Insertion (C) | 75 mm |
| Rearward Offset Road Position (D) | 16 mm (post centerline to clamp centerline) |
| Forward Offset Aero Position (E) | 34 mm (post centerline to clamp centerline) |
| Total Travel Road to Aero Position | 50 mm (3-4 degrees effective seat tube angle change) |
| Saddle Rail Compatibility | Standard 7 mm round saddle rails only |
| Material | Linkages & saddle clamps - 7075 T6 aluminum Post - 6061 T6 aluminum |
| Rider Weight Limit | 115 kg (250 lb) |
| Intended Use | ASTM F2043 Class 1 - Suitable for road riding (only). |
Will my saddle bag fit with the Dual-Position Seatpost?
Most standard strap-based saddle bags will fit the dual-position seatpost without issue.You may need to loosen the straps slightly to accommodate the movement that occurs between road and aero positions. If your saddle bag uses rigid clips, clamps, or some other inflexible attachment method, it's possible that your bag may not be compatible.
Here is an example bikepacking saddle bag from one of our ambassadors that works just fine with the Dual-Position Seatpost:
If you have questions about your specific bag, please email us at info@redshiftsports.com and we'll help you figure it out!
Is the Redshift Dual-Position Seatpost legal to use in a triathlon race?
Yes! The Dual-Position Seatpost is legal for use in any non-drafting triathlon. That includes all Ironman events, USAT sanctioned events, and the vast majority of triathlons worldwide. The only events where the seatpost is not permitted are draft-legal events, which are relatively uncommon. If you're wondering about a specific race, shoot us an email at support@redshiftsports.com and we'll help you figure it out.Will the Dual-Position Seatpost fit a Shimano Di2 battery inside?
Yes, the standard "lipstick" style Shimano Di2 battery will fit inside the seatpost. Keep in mind that the inner diameter of the seatpost is ovalized, so standard round battery mounts may not be compatible. We have found that wrapping the battery with a thin layer of packing foam is usually sufficient to secure the battery within the seatpost.To read more Frequently Asked Questions, click here.
Download Instructions (PDF):
Instructions - Dual-Position Seatpost
- Reviews
- Questions
More than just for aero gains
I have had this seat post for several months. I have found that moving the saddle forward and up is not only good for aero gains but also great for climbing steep grades as it keeps you more overtop of the bottom bracket. I also find having an occasional change in position great for long endurance rides.
Heron-like look - but fabulous performance
It's really cool to combine two characters in one bike with just the two positions of the seatpost.
Great addition, exemplary warranty service
Smart and truly functional addition to my bike. In combination with the aero bars, it helped me through training and race day of my first long distance triathlon and is still a very useful function on more casual, longer rides when it not only helps with aerodynamics but also comfort by being able to alternate positions. Great risk of feeling smug when passing expensive time trial bikes.. Maybe best of all, the warranty given by Redshift is also exemplary: bought in 2015, a problem with one of the bushings pushing out without me noticing (this wont happen in newer versions I think)) led to a problem that was swiftly adressed by redshift (replacement unit sent within days). Exemplary service, shows Redshift confidence in its own products and long term view. Highly recommended.
