Quick-Release Aerobars:

 

Weight	630 g/pr Aluminum S-bend 640 g/pr Aluminum L-bend
Pad Height (A)	Minimum - 70 mm Maximum - 100 mm (with two stack spacers - sold separately as Extension Riser Kit)
Pad Setback (B)	Minimum - 30 mm Maximum - 81 mm
Pad Width (C)	Minimum - 108 mm Maximum - 165 mm
Extension Length (D)	362 mm S-bend 368 mm L-bend
Extension Rise (E)	50 mm S-bend 100 mm L-bend
Extension Diameter (F)	22.2 mm (compatible with industry-standard extensions)
Handlebar Clamp Width (G)	22 mm
Handlebar Diameter	31.8 mm compatible 26.0 mm compatible (with shims - sold separately as Shim Kit)
Material	6061-T6 aluminum
Intended Use	ASTM F2043 Class 1 - Suitable for road riding (only).

 

 

 

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).

[Aerobars] Should I choose L-Bend or S-Bend extensions?

If you don't have any previous experience using aerobars, we typically recommend the L-Bend aerobars because they put your wrists and arms in a more comfortable, ergonomic position. This is usually a better fit for triathletes and long-distance riders. If you're planning on using the aerobars for shorter, higher-intensity efforts like a time-trial, then the S-Bend shape can give you slightly more leverage to put out maximal power.

[Aerobars] How do aerobars affect my bike fit?

This is a really important question, and it's one that we've spent a lot of time thinking about here at Redshift Sports, so get ready for a long answer!
Aerobars (of any brand) work by rotating your upper body forward so that it is more parallel to the ground, and therefore less exposed to air resistance (imagine sticking your hand out a moving car window with your palm facing forward vs. with your fingers facing forward). If you don't change your saddle position when moving from road to aero positions, the angle between your thigh and your torso (otherwise known as the "hip angle") becomes tighter at the top of your pedal stroke, since your knees are effectively coming closer to your chest as you lower your upper body. For most riders, the tighter hip angle is uncomfortable and can actually reduce power output because you end up fighting against your body's own range of motion to move your leg over the top of the pedal stroke. It can cause back pain and generally leads to a riding position that is unsustainable, particularly for longer distance events.
The other unintended consequence that occurs if the saddle position is not adjusted is that the aerobar armpads tend to be too far away to reach comfortably. You end up riding in a "superman" position with your arms extended too far forward, which puts a lot of stress on the supporting muscles of the arms, shoulders, and core.
We specifically designed the Quick-Release Aerobars along with the Dual-Position Seatpost specifically to address this issue. The Dual-Position Seatpost addresses the fit implications of riding with aerobars on a road bike by allowing the saddle to move forward with the rider when shifting from road to aero riding positions. This forward movement effectively rotates the rider's body around the bottom bracket (where the pedals attach), naturally lowering the upper body down onto the aerobars without compressing the rider's hip angle. The forward movement also positions your body comfortably and efficiently over the aerobar armrest pads, letting you support your upper body through your skeleton, rather than relying on muscles.
Together, the Quick-Release Aerobars and Dual-Position Seatpost provide an optimized aero riding position that allows you to ride efficiently, comfortably, and powerfully on your road bike in both road and aero positions.

[Aerobars] Will the aerobars fit non-round (aero-shaped) handlebars?

The handlebar clamps for the Quick-Release Aerobars need at least 22mm (7/8 inch) of straight, cylindrical handlebar on either side of the stem to clamp properly. Some aero-shaped handlebars have a sufficiently wide cylindrical section in the center of the handlebar to properly mount clip-on aerobars, however, some handlebars are ovalized or tapered within the clamping region. In this case, Redshift aerobars (or any clip-on aerobars) will not be compatible since they will not clamp securely on the non-round handlebar.The best way for you to check is to measure yourself, take it to a bike shop to get measured, or look up your handlebars specs online.

To read more Frequently Asked Questions for the Quick-Release Aerobars, click here.

[Seatpost] 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!

[Seatpost] 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.

[Seatpost] 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 for the Dual-Position Seatpost, click here.

Download Instructions (PDF):
Instructions - Quick-Release Aerobars
Instructions - Dual-Position Seatpost

Installing Handlebar Clamps:

Attaching & Removing QR Aerobars:

Adjusting Armpad Position: