Top 10 Best dropper post 31 6 in 2026

Last Updated - 6/20/2026

🏆Best Choice

PRETTYGARDEN

PRETTYGARDEN Women's Smocked Maxi Dresses 2025 Summer Beach Sundress Casual Spaghetti Strap Swing A Line Long Flowy Dress (Wine Red,X-Large)

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•COZY FABRIC: S=US 4-6，M=US 8-10，L=US 12-14，XL=US 16-18，XXL=US 20 Women’s Maxi Dress Is Made of Breathable Materials That Feel Soft and Lightweight on Your Skin, Offering A Comfortable Fit
•CHIC STYLE: Women’s Boho Maxi Dress Features A Stunning Fit and Flare Cut, Showing off Your Curves in All The Right Way. Women Sleeveless Smocked Dress Creates A Streamlined Silhouette and The Flowy Hem Adds A Touch of Whimsy
•STYLISH DESIGN: Maxi Dress for Women; Summer Dress for Women 2025; Long Flowy Dress; Spaghetti Strap Dress; Fit and Flare Dress; Sundress with Pockets; Smocked Dress; Ruffle Swing Dress; High Waist A Line Dress; Boho Dress; Backless Dress
•MORE DETAILS: Featuring Adjustable Spaghetti Straps and A Flattering A-Line Design, Sundress for Women Flatters All Body Types. Pair This Long Beach Dress with A Cute Pair of Sandals or Match with Heels and Jewelry for A More Elevated Look
•SUMMER STAPLE PIECE: Women’s Cami Dress Adds A Touch of Feminine Charm to Your Style, Suitable for Holiday, Party, Date Night, Travel, Beach Vacation, Bridal Shower, Wedding, From A Casual Day Out to A Special Event

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$37.99

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BNVB

BNVB Alloy Bike Seatpost Shim, 100mm Length Aluminum Bicycle Reducing Sleeve Seat Post Tube Adapter, Diameter Switch 30.9 to 31.6mm

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Length: 100mm, Guarantee you seatpost insert safe.
•Material: Made of high quality 6061 aluminum alloy, CNC machining CD texture surface, Light weight, anti-rust and durable.
•Easy Install: Easy to install and remove, Convenient for you to Switch Seatpost in need.
•Suit for MTB bike, mountain bike, road bike etc.
•Note: Please measure the outside diameter of your seatpost, (or check the size marks on the seatpost). Then measure your bike frame seat tube inside diameter. Then choose right Size.

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$9.99

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JFOYH

EXA Form 900i 30.9mm/31.6mm Internal Routing Dropper Post with Lever and Cable Kit MTB/Ebike Internal Bike Seatpost 100/120/150mm Travel -345/395/445mm Length

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•For Internal Routing Frames Only – This dropper post is specifically designed for bikes with internal cable routing. Please confirm your frame supports internal routing before purchasing.
•Select the Correct Diameter – Available in 30.9mm and 31.6mm. It’s crucial to measure your bike’s seat tube inner diameter and choose the matching size. An incorrect size will not fit.
•Smooth Remote-Control Height Adjustment – Includes a remote lever for quick and precise seat height changes while riding, so you can adapt instantly without stopping.
•Lightweight & Durable Alloy Construction – Crafted from 7075 aluminum alloy for strength and reliability. Weight ranges from approx. 480g (shortest) to 670g (longest) depending on the length.
•Multiple Length & Travel Options – Choose from 345mm/395mm/445mm lengths with 100mm/120mm/150mm travel options to match your bike and riding style.

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$125.98

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Bibike

Bibike Dropper Post 27.2/30.4/30.9/31.6mm x 440mm Length 125mm Travel Remote External Cable

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Before Purchasing, please check the diameter of your old seatpost to ensure you receive the correct new seatpost. Only the seatpost with the uniquely correct diameter can be installed on your bicycle; and choosing a seatpost with any other diameter will result in installation failure.
•The package includes 1x 31.6x350mm seatpost.
•Length: 440mm. Travel: 125mm. Cable length: 1.5m. Cable diameter : 4.5mm. External cable dropper seatpost.
•This dropper seatpost is made of alloy 7075 which is very strong and light (828g in weight). The maximum weight capacity can reach 200kg.
•Note1: There is a hexagonal nut near the dropper lever, and the lifting speed of this dropper post can be adjusted by adjusting the tightness of the nut.

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$119.98

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MEROCA

Dropper Seat Post for Mountain Bike, 30.9/31.6mm Bike Seat Post, 125mm Travel, Aluminum Body, with Remote Lever and Cable Kit, MTB/Ebike Internal Routing (31.6mm)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Adjustable Angle: Dropper post with 125mm travel and double nail back float design for adjusting seat cushion angle and compensating for center of gravity shifts.
•Universal Fit: 30.9/31.6mm diameter aluminum body suitable for mountain bikes and e-bikes with internal cable routing.
•Easy Installation: This dropper post is designed for frames with internal cable routing on modern mountain bike frames, providing a clean and organized appearance.
•Enhanced Stability: Float design enhances stability by accounting for seat position changes
•Excellent Quality: Full aluminum 6061 body ensure the lightweight, 30.9mm weight 568g/ 1.25lbs, 31.6mm weight 588g/ 1.3lbs（accessories not included）. Surface anodized.

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$69.98

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CooMeng

EXA Form 900i 30.9mm/31.6mm Remote Control Dropper Post with 1x Lever kit and Cable in Housing, 100mm/120mm Travel Dropper Seatpost-31.6mm X 345mm

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•The EXA Form 900i is designed for internal cable routing.
•2 diameters are available: 30.9mm or 31.6mm, it is very important to choose the correct diameter.
•All Component in One Set: Coming with 1500mm cable in housing, and 1X remote lever kit. You don't need to buy anything else.
•Updated cartridge is more durable with smoother rebound.
•Lifetime warranty and industry leading customer support.

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$119.98

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MEROCA

MEROCA Upgraded Speed Up 27.2mm/30.9mm/31.6mm Cable-Less Hydraulic Dropper Seatpost, 100mm/125/150mm Travel Dropper Post for MTB/E-Bike/Road Bike

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•3 Diameters Are Available: 27.2mm, 30.9mm, 31.6mm are all available for sale, other sizes can be selected as 27.2mm +28.6/30.0/30.4/30.8/33.9mm diameter-reducing sleeve combination
•Easy Installation: no cables or housing, just gently insert the purchased seat tube into the frame, and then lock it. IMPORTANT: Insertion is required to the minimum insertion depth scale
•Cable-Less Cable-Less Hydraulic Control: Smooth oil-gas structure enables single-hand operation to adjust seat height instantly while riding. No tangled cables – perfect for trail riding and steep descents
•Simple Operation: Just pull the lever and sit to adjust seat height
•Durable and Lightweight: Hydraulic dropper integrated inside 7075 alloy tube

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$55.00

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MEROCA

MEROCA Upgraded Speed Up 27.2mm/30.9mm/31.6mm Cable-Less Hydraulic Dropper Seatpost, 100mm/125/150mm Travel Dropper Post for MTB/E-Bike/Road Bike (31.6mm, 31.6*150mm)

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•3 Diameters Are Available: 27.2mm, 30.9mm, 31.6mm are all available for sale, other sizes can be selected as 27.2mm +28.6/30.0/30.4/30.8/33.9mm diameter-reducing sleeve combination
•Easy Installation: no cables or housing, just gently insert the purchased seat tube into the frame, and then lock it. IMPORTANT: Insertion is required to the minimum insertion depth scale
•Cable-Less Cable-Less Hydraulic Control: Smooth oil-gas structure enables single-hand operation to adjust seat height instantly while riding. No tangled cables – perfect for trail riding and steep descents
•Simple Operation: Just pull the lever and sit to adjust seat height
•Durable and Lightweight: Hydraulic dropper integrated inside 7075 alloy tube

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$56.00

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TranzX

Jump Seat Cable-Less Dropper Post (31.6mm, 100mm)

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Easy installation, no cables or housing
•Simple operation — just pull the lever and sit to adjust seat height
•Infinitely adjustable — seat height can be set anywhere in range
•Travel: 100mm
•Warranty: 2-years

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$119.00

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Bibike

Safort 30.9mm/31.6mm Dropper Seatpost, 100mm Travel Cable-Less Dropper Post for MTB/E-Bike/Road Bike

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•2 Diameters Are Available: 30.9mm, 31.6mm are available for sale, it is very important to choose the correct diameter of seatpost according to the inner diameter of your bike frame.
•Outside diameter: 30.9mm/31.6mm. Length: 350mm. Travel: 100mm. Weight: about 670 grams(1.5 pounds).
•Simple Operation: Just pull the lever and sit to adjust seat height. Seat height can be set anywhere in travel range.
•Compatible with steel and carbon fiber saddles with 6x6, 7x7, 7x9, 8x10mm rails and the saddle angle is adjustable.
•Made of 7075 aluminum alloy for strength and durability, this seatpost supports riders weighing up to 400 pounds.

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$66.98

$76.98

-13%

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