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Seatposts
$7.90
• For aluminum seatposts.
• 6061 T6 aluminum.
• Screw-on seatpost clamp.
• Diameters: 28.6, 31.8 and 34.9 mm.
$9.99
Keep your seatpost right where you left it.
Strong and confident
Replacement seatpost clamps for a variety of frame and seatpost sizes.
Product details
- Follow laser-etched torque listing on collar
$12.99
Genuine replacement parts
Original replacement seatpost.
Product details
- Saddle rail clamp sold separately
- Durable steel construction
$15.00
The Brompton Seatpost bung is a rubber bung which fits into the underside of the seat post, acting as a cushion to prevent clunking against the ground when it is lowered down. The bung also helps to prevents Brompton bikes fitted with Eazy Wheels rolling, when not in use.
- Weight: From 0.03 kg
- Brand: Brompton
- Compatibility: ACPT
- Diameter: 32.8cm (Match flared end)
$17.99
Strong and confident
Replacement seatpost clamps for a variety of frame and seatpost sizes.
Product details
- See spec chart for available diameters and compatibility
- Follow laser-etched torque listing on collar
$27.99
Bontrager's SSR Seatpost features straight gauge aluminum construction, a two-bolt rocker head with micro-adjustment, and comes in two diameters. This seatpost is suitable for both road and mountain bike use.
$29.99
Durable alloy construction
- Quick and easy 1-bolt adjustment
- 400mm length
$34.99
- Straight-gauge 6061-T6 alloy shaft construction
- 2-bolt rocker-head with micro-adjustment
- Suitable for road or mountain use
$35.99
Get back on the road with an original equipment saddle.
GENUINE REPLACEMENT PARTS
Keep your bike operating as it should.
PRODUCT DETAILS
- Integrated 22.2mm x 170mm seatpost
- Integrated rear handle for stability
$35.99
Get back on the road with an original equipment saddle.
GENUINE REPLACEMENT PARTS
Keep your bike operating as it should.
PRODUCT DETAILS
- Integrated 22.2mm x 195mm seatpost
- Integrated rear handle for stability
$35.99
Get back on the road with an original equipment saddle.
GENUINE REPLACEMENT PARTS
Keep your bike operating as it should.
PRODUCT DETAILS
- Seatpost included
- Integrated rear handle for stability
$35.99
Get back on the road with an original equipment saddle.
GENUINE REPLACEMENT PARTS
Keep your bike operating as it should.
PRODUCT DETAILS
- Seatpost included
- Integrated rear handle for stability
$41.99
• Durable aluminum construction
• For specific compatibility concerns, please contact our Customer Service team
$41.99
Smooth out your ride with a new suspension seatpost.
Replacement suspension seatposts for a variety of frame styles.
Product details
- Durable aluminum construction
- For specific compatibility concerns, please contact our Customer Service team
$75.00
Ideal for smaller to average-height riders this seatpost will suit the majority of people with an inseam of 26" - 32".
- Genuine Brompton Components
- Steel main shaft with a length of 535mm
- 31.6mm diameter
$84.99
The Elite seatpost is a distilled design guaranteed to deliver reliable everyday performance for years to come. Perfect as a replacement or your next upgrade.
With an alloy body and a 2-bolt micro adjust head, this seatpost is available in a slew of diameters, lengths, and offsets to get you the right position.
Key features:
- 2-bolt micro-adjust head mechanism offers 15 degrees of adjustment
- Constructed of 2014 alloy
- Forged 6061-T6 alloy head, top and bottom clamps
- Unique clamp shape allows for easy saddle changes
- Compatible with standard and oversize carbon saddle rails
- Suitable for road or mountain use
$139.99
Genuine replacement parts
Replacement cartridges for the Line Elite collection of dropper posts, available here for both 31.6mm and 34.9mm Line Elite models
Product details
- Replacement cartridge unit for Bontrager Line Elite Dropper seatposts.
- Regular maintenance will help maintain performance and extend lifespan.
- Refer to Service Manual for assembly instructions and service.
$154.99
Pro performance post
A seatpost should do one thing well — hold your seat. Our new carbon fiber Pro seatpost does that and more with a reliable 2-bolt design that lets you swap saddles with ease.
Great for road or mountain use and available in a slew of diameters, lengths and offsets, this post gives you the setup versatility you've always wanted.
- 2-bolt micro-adjust head mechanism offers 15 degrees of adjustment
- OCLV carbon fiber shaft
- Forged 6061-T6 alloy head with OCLV carbon fiber top and bottom clamps
- Unique clamp shape allows for easy saddle changes
- Compatible with standard and oversize carbon saddle rails
- Suitable for road or mountain use
$175.00
Brompton Telescopic Seatpost Snap-Fit in Silver is suitable for all riders with inside-leg measurements up to a maximum of 99cm (39 inches) and for taller riders who also wish to minimise the height of the folded bicycle.
Specification
Diameter Diameter (approx.) - 31.6mm (with flared end)
Weight 701g
Material Steel
Details
- Seatposts do not require any grease, copper slip or lubrication
- Snap-fit
- The telescopic seatpost gives up to 175mm more height yet, when lowered, the saddle projects only 20mm above your folded Brompton bike
Compatibility Suitable on all Brompton folding bikes
$194.99
Soften your ride by using a comfortable seatpost.
Genuine replacement parts
Make your ride more comfortable with a suspension seatpost.
- For use with riders of 70 to 90kg
- Offset: 30—60mm
- Travel: 27mm
- With double bolt saddle clamp
$199.99 - $464.99
$464.99
Up to 57% Off
A performance dropper post with an larger 34.9mm diameter and updated design with MaxFlow technology for faster, smoother operation. The Line Elite 34.9 Dropper is easy to set up and easier to drop, with 20% less saddle force required. Avid Matchmaker and Shimano I-Spec II compatibility ensures simple, integrated setup and the included lever provides a great feel with an easy push. Length options from 100mm to 200mm travel ensure there is a size for your ride. Designed for bikes with 34.9mm seatpost compatibility.
- Infinitely adjustable air-sprung hydraulic locking cartridge with 20 percent reduction in compression force
- MaxFlow design allows for a faster return and less compression force
- 34.9mm diameter adds strength and durability while reducing side-play and stiction
- Cable-actuated under-bar lever compatible with MatchMaker and Shimano EV
- 2-bolt rocker head with micro adjustment allows for easy saddle tilt adjustment
- Internal cable routing keeps housing tucked away and free from moving wheel
- Includes cable, housing, and 1x under-bar remote lever
- On-Bar Universal Lever sold separately
$204.99
Trek-compatible seat mast cap.
Offered in white and black and a variety of lengths and offsets, the mast cap includes hardware compatible with round saddle rails only. 7x10mm carbon rail-compatible hardware sold separately. A mast cap available in two sizes and offsets for all Trek road bikes with round seat masts.
Product details
- Ultra-light carbon construction
- One bolt head design offers easy fore-aft and infinite angle adjustment
- Compatible with all Trek road bikes with round seat masts
- Aluminium clamp
- Includes 7mm round saddle clamp ears, 10mm ears sold separately
$204.99
Trek-compatible seat mast cap
Offered in white and black and a variety of lengths and offsets, the mast cap includes hardware compatible with round saddle rails only. 7x10mm carbon rail-compatible hardware sold separately.
Key features:
- Ultra-light carbon construction
- One bolt head design offers easy fore-aft and infinite angle adjustment
- Compatible with all Trek road bikes with round seat masts
- 175mm and 135mm lengths
- 5mm and 20mm offsets
- Aluminum clamp
$239.99
Since 1992, TranzX has been a leader in the industry – recognized for excellent design, practicality of application and superior quality.
The TranzX adjustable seatpost equips air pressure actuation–freely and easily adapting your seat position according to the terrain you meet.
The MICRO adjustment offers quick and easy seat positioning at any spot throughout the travel, with reliable and robust technology.
Product details:
- Remote actuated dropper post with Stealth internal routing and a clean look
- Lever is not included - Bontrager Drop Line Universal Dropper Lever is recommended
| Size | 31.6mm x 360mm x 100mm | 31.6mm x 420mm x 130mm |
|---|---|---|
| Diameter | 31.6mm | 31.6mm |
| Length | 360mm | 420mm |
| Travel | 100mm | 130mm |
| Seatpost type | Dropper posts | Dropper posts |
| Offset | 0mm | 0mm |
| Rail compatibility | Universal | Universal |
| Material | Aluminum | Aluminum |
$259.00 - $299.50
The OneUp Dropper post is available in 120mm, 150mm, 180mm and 210mm lengths and all can be shimmed down in travel by 10 or 20mm.
We've been obsessed with shaving every last millimeter from the latest OneUp post to give you the the shortest stack height and shortest total length of any dropper post. No other post can get your saddle lower.
Starting from $199 USD with free shipping worldwide, cable actuated with reliable sealed cartridge internals for easy home servicing and includes travel adjust shims allow you to custom tune your post to dial in your perfect length.
The dropper market is dominated by expensive big brand posts and generic catalog shopped posts with different logos. We want to offer something better, a post with class leading specs, innovative useful features AND real value. Want more from your dropper? Get OneUp.
FEATURES
- Travel adjust shims allow you to custom tune your post to dial in your perfect length.
- Cable actuated for easy installation and a simple no bleed remote
- Ergonomic remote paddle position
- Reliable sealed cartridge internals
- User replaceable cartridge only $60 USD
- Easy to service at home
- 2 year warranty
UPDATES
- Shortest total length of any dropper
- Shortest stack height of any dropper
- New upper DU Bushing in the upper collar
- Increased bushing overlap and durability
- 100-210mm post lengths in 10mm increments.
- 20g lighter
SPECS
- Drop 120mm, 150mm, 180mm, 210mm adjustable*.
- Diameter 30.9, 31.6, 34.9
- Routing Internal only
Remote Compatibility:
- SRAM Matchmaker X - SRAM MMX clamps
- Shimano I-spec-EV - 12 speed XTR M9100, XT M8100 and SLX M7100
- Shimano I-spec II - 11 speed XTR M9000, XT M8000, SLX M8000 only
- 22.2mm Bar Clamp - All other groups 10 speed SHIMANO
- Cable clamping remote only (post requires cable stop to be assembled at base of post)
- Travel Reducing Shim Reduces travel by up to 20mm.
Weight Post Only
- (30.9) 120mm 435g / 150mm 480g / 180mm 525g / 210mm 570g
- (31.6) 120mm 450g / 150mm 500g / 180mm 545g / 210mm 590g
- (34.9) 120mm 545g / 150mm 605g / 180mm 660g / 210mm 710g
Remote Only
- Remote with 22.2mm Bar Clamp - 46g
- Remote with SRAM Matchmaker X / I-spec-EV - 43g
- Remote with Shimano I-spec-EV - 43g
- Remote with Shimano I-spec II - 41g
- Housing and Cable (1300mm installed length) - 50g
$259.99
Genuine replacement parts
Original replacement seatposts for your Domane MKIV.
Product details
- Aerodynamic design
$264.99
A reliable dropper seatpost with a 3-key chassis design that minimizes shaft play for a post that provides smooth and consistent travel adjustment.
Get up to get down
The Bontrager Line 34.9 dropper seatpost offers reliable and infinite adjustability within multiple dropping ranges to suit riders of all types. A 3-keyed chassis design provides additional lateral rigidity and minimizes play while a 2-bolt rocker head is perfect for fine-tuning saddle tilt. Line 34.9 is also designed with a shorter overall length, which allows more adjustability and frame compatibility.
Need an even shorter drop? Grab a 10mm or 30mm travel reducer spacer.
PRODUCT DETAILS
- Air-sprung hydraulic locking cartridge offers infinite adjustability within dropping range
- 3-key chassis prevents rotation for a stable ride
- 2-bolt rocker head with micro adjustment allows for easy saddle tilt adjustment
- Shorter overall length [versus previous version] allows more adjustability and compatibility
- Fine-tune your fit fast and easy with 10mm and 30mm travel reducer spacers
- Lever sold separately. Compatible with Universal Lever, Under Bar Lever, and Elite Under Bar Lever
- Internal cable routing keeps housing tucked away and free from moving wheel
- Frame must be compatible with internally routed seatpost routing
$274.99
Bontrager's Speed Concept Seatpost lets you get your aero fit dialed. Different offsets allow you to customize your riding position for superior ergonomics and aerodynamics, and the clamp is compatible with both standard and oversize saddle rails. This seatpost is compatible with 2014 Trek Speed Concept 9 Series bikes.
$274.99
Integrates seamlessly into frame.
Genuine replacement parts
Keep your Speed Concept looking fresh.
- Only compatible with Speed Concept
- Flippable head
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