---
product_id: 50275944
title: "REDSHIFT Dual-Position Bike Seatpost, Aluminum Bicycle Seat Post Saddle Pole, Cycle Biking Accessories and Parts, 27.2mm x 350mm Black"
brand: "redshift"
price: "A$691"
currency: AUD
in_stock: true
reviews_count: 6
category: "Redshift"
url: https://www.desertcart.com.au/products/50275944-redshift-dual-position-bike-seatpost-aluminum-bicycle-seat-post-saddle
store_origin: AU
region: Australia
---

# Maintains perfect leg extension Patented dual-position tech Switch road to aero on-the-fly REDSHIFT Dual-Position Bike Seatpost, Aluminum Bicycle Seat Post Saddle Pole, Cycle Biking Accessories and Parts, 27.2mm x 350mm Black

**Brand:** redshift
**Price:** A$691
**Availability:** ✅ In Stock

## Summary

> 🚴‍♀️ Shift gears, shift posture, shift your ride game.

## Quick Answers

- **What is this?** REDSHIFT Dual-Position Bike Seatpost, Aluminum Bicycle Seat Post Saddle Pole, Cycle Biking Accessories and Parts, 27.2mm x 350mm Black by redshift
- **How much does it cost?** A$691 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/50275944-redshift-dual-position-bike-seatpost-aluminum-bicycle-seat-post-saddle)

## Best For

- redshift enthusiasts

## Why This Product

- Trusted redshift brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Optimized Comfort & Fit:** Engineered to maintain proper saddle positioning, ensuring faster rides with less fatigue.
- • **Precision Leg Extension:** Keeps pedal-to-saddle length consistent across positions for peak power and injury prevention.
- • **Universal Compatibility:** Fits standard 27.2mm seat tubes and 7mm saddle rails; adaptable with shims for broader bike models.
- • **On-the-Fly Aero Transformation:** Instantly switch to an aerodynamic posture without stopping—own every second of your ride.
- • **Patented Dual-Position Innovation:** Seamlessly toggle between road and triathlon positions mid-ride for ultimate versatility.

## Overview

This lightweight aluminum Dual-Position Bike Seatpost (27.2mm x 350mm) empowers cyclists to effortlessly switch between road and aero positions during rides. Designed for triathlon and long-distance enthusiasts, it ensures consistent leg extension and optimal comfort, transforming any compatible road bike into a high-performance machine.

## Description

REDSHIFT Dual-Position SeatpostThe patented Dual-Position Bicycle Seatpost is one of the most cost-effective ways of finding more comfort on the bike you already own rather than having to purchase a whole new bike. It allows you to switch between road and aero positions while riding your bike, so you can choose the best riding position at any given part of your ride. A perfect road bike seatpost, mountain bike seatpost, e-bike seatpost, gravel bike seatpost. Revolutionary biking accessory designed for all riders and all bikes.Seamlessly Lets You Switch Between Road And Aero PositionsSwitch between road and aero positions on the fly during your ride, this bike seatpost lets you transform your bike and seamlessly change positions. Choose the best position for every single climb, flat, or descent. The key to riding comfortably is a proper saddle position. Since this bike saddle post allows you to ride with a proper aero bike fit on a standard road bike, you ride faster and more comfortably. Save time, energy, and money from switching from a road bike to an aero bike.Maintain Proper Leg Extension In Both PositionsThis seatpost for bikes is designed to maintain the same pedal-to-saddle length in both positions, ensuring proper leg extension in the road and aero riding positions. The saddle moves forward 50mm, corresponding to approximately 4 degrees of effective seat tube angle change. A simple two-bolt saddle clamp allows infinite saddle tilt adjustment and reliable clamping. 16mm rearward setback (road position). Compatible WithThe bike seatpost is 27.2 mm in diameter by 350 mm in length. Shims (sold separately) can be used to adapt the seatpost to bikes with larger seatpost diameters. The seatpost accepts saddles with standard round 7 mm saddle rails. Weighs 400 g including all hardware.

Review: Quality seat post and worth the money - Quality seat post. Comfortable position in both aero and regular ride positions. Competed ultra distances with this seat post which has helped in maintaining comfort.
Review: I wasn’t quite convinced to the quality and effectiveness of this production till I installed it and tried on. First of all , this device never shifts accidentally between 2 positions; however , when you are ready to switch , you can do it easily and on the fly. I am really taken aback how easily I can move between 2 positions without straining, wiggling and etc . Secondly , it servers it’s purpose well. As, I am adjusting my road bike to use it for my first 70.3 distance triathlon, this seat post postions my body in comfortable aero position. When I get off the bike, I feel like my legs are less fatigue and I can transition to running easilier. I now feel more optimistic about my first 70.3. Redshift is a great option for people that are either on budget or don’t want to own seprate road and tri bike.

## Features

- PATENTED DUAL-POSITION SEATPOSTS – The patented Redshift Dual-Position Seatpost for bicycles allows you to switch between two seatpost positions: road and triathlon positions while riding your bike. Innovative bike accessories optimized for triathlon and long distance riders.
- SWITCH FROM ROAD TO AERO POSITION – The Dual-Position bike seatpost allows you to switch between road and aero positions on the fly during your ride. Transform the road bike you already own into a triathlon riding position for proper fit with aero bars.
- RIDE WITH EASE MORE COMFORTABLY – The key to riding comfortably is proper positioning of your bike saddle. This bike seatpost allows you to ride with a proper aero bike fit on a standard road bike, so you can ride faster and more comfortably.
- ENSURES PROPER LEG EXTENSION – This seatpost for bikes is designed to maintain the same pedal-to-saddle length in both positions, ensuring proper leg extension in the road and aero riding positions.
- COMPATIBLE WITH – The seat post is 27.2 mm in diameter by 350 mm in length. Shims (sold separately) can be used to adapt the seatpost to bikes with larger seatpost diameters. The bike seat post accepts saddles with standard round 7 mm saddle rails.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| UPC | 051907109198 |
| Global Trade Identification Number | 00051907109198 |
| Bike type | Triathlon Bike |
| Color | Black |
| Material type | Aluminium |
| Batteries included? | No |
| Item model number | RS-20-01 |
| Product Dimensions | 2.72 x 2.72 x 35 cm; 510 g |
| ASIN | B00K0PTY0M |

## Product Details

- **Colour:** Black
- **Item weight:** 0.51 Kilograms
- **Material:** Aluminium
- **Brand:** REDSHIFT
- **Manufacturer:** Redshift Sports

## Images

![REDSHIFT Dual-Position Bike Seatpost, Aluminum Bicycle Seat Post Saddle Pole, Cycle Biking Accessories and Parts, 27.2mm x 350mm Black - Image 1](https://m.media-amazon.com/images/I/718IWnxU+gL.jpg)

## Questions & Answers

**Q: Are you allowed to use this in an Ironman triathlon?**
A: Definitely! 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.

**Q: Does it have max load weight? Im 110kg.**
A: Yes, 115 kg (250 lb)

**Q: Is this permitted in competition under itu/etu rules?**
A: I don’t know, probably not.

**Q: Will this fit my Liv Langma which has an oval shaped seat post**
A: No, unfortunately if your seat post is proprietary, i.e. not round then it won’t fit. Which is a real shame because it’s an awesome idea.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality seat post and worth the money
*by F***E on 28 March 2019*

Quality seat post. Comfortable position in both aero and regular ride positions. Competed ultra distances with this seat post which has helped in maintaining comfort.

### ⭐⭐⭐⭐⭐ Review
*by T***S on 15 September 2018*

I wasn’t quite convinced to the quality and effectiveness of this production till I installed it and tried on. First of all , this device never shifts accidentally between 2 positions; however , when you are ready to switch , you can do it easily and on the fly. I am really taken aback how easily I can move between 2 positions without straining, wiggling and etc . Secondly , it servers it’s purpose well. As, I am adjusting my road bike to use it for my first 70.3 distance triathlon, this seat post postions my body in comfortable aero position. When I get off the bike, I feel like my legs are less fatigue and I can transition to running easilier. I now feel more optimistic about my first 70.3. Redshift is a great option for people that are either on budget or don’t want to own seprate road and tri bike.

### ⭐⭐⭐⭐⭐ Review
*by S***E on 2 June 2023*

Ich habe mir diese Stütze jetzt für einen Ironman 70.3 gekauft. Bislang bin ich immer mit Aero-Aufsatz, aber normaler Sattelstütze gefahren. Ich bin gestern dann das erste Mal mit der Redshift Stütze 70 km geradelt und anschließend 15 km gelaufen. In der vorderen Position merkt man einen deutlichen Unterschied: Man kommt viel weiter nach vorne in den Aero-Aufsatz. Das Fahrgefühl wird etwas kippeliger, aber man merkt, dass man ökomischer auf dem Rad unterwegs ist. Im Prinzip sitzt man wie auf einem Triathlon-Rad, da der Winkel des Sattelrohrs quasi ähnlich ist (wird von ca. 73 Grad auf 78 Grad erhöht). Beim Wechsel zum Laufen hatte ich das Gefühl, dass meine Beine nicht so ermüdet waren wie in der normalen Position. Man kann während der Fahr problemlos zwischen den beiden Positionen wechseln: Nach vorne, indem man den Sattel mit der Hand nach vorne zieht und nach hinten, indem man den Sattel mit den Oberschenkeln nach hinten drückt. Der Preis und das Gewicht sind hoch, aber es gibt keine vergleichbare Stütze, mit der man die Sitzposition so schnell und problemlos wechseln kann.

## Frequently Bought Together

- REDSHIFT Dual-Position Seatpost Aluminum
- REDSHIFT Really Long Bike Handlebar Tape for Road Bikes, Gravel, Fixie Bicycles Drop Bar Handle Wrap, Ergonomic Comfort Cycling Accessory, 315cm Long, Grey Color
- REDSHIFT Aerobars Bike Aero Bar Extension Riser Kit, Biking Accessories, Components, Parts

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**Shop now:** [https://www.desertcart.com.au/products/50275944-redshift-dual-position-bike-seatpost-aluminum-bicycle-seat-post-saddle](https://www.desertcart.com.au/products/50275944-redshift-dual-position-bike-seatpost-aluminum-bicycle-seat-post-saddle)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-04*