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Seat
Clamps

Scott

Replacement Seatclamp For Addict RC (2020)

£29.99

Scott

Addict Seatclamp (30.2mm)

£10.00

Scott

Solace Seatclamp (31.2mm)

£10.00

Scott

Foil Seatclamp 2016 Onwards

£60.00

Hope Technology

Bolted Seat Clamp

£20.00  
Was  £22.00   | Save  £2.00   (9%)
Available Colours
Available Sizes

Hope Technology

Quick Release Seat Clamp

£21.00  
Was  £27.50   | Save  £6.50   (24%)
Available Colours
Available Sizes

Cannondale

30.9mm Seatpost Clamp For CAAD 10/CAAD X 2017/CAAD Optimo/Slate

£9.99

Cannondale

KNOT System Six Seatpost Clamp Hardware

£19.99

Cannondale

28.0mm Seatpost Clamp For CAAD 12/S6 Evo 2 2016/Synapse Alloy 2018

£29.99  
Was  £32.99   | Save  £3.00   (9%)

Cannondale

Internal Seatpost Wedge For SuperX 2017/Synapse Carbon 2018

£40.99  
Was  £44.99   | Save  £4.00   (9%)

CUBE

Seatpost Clamp For Stereo, Reaction, Nuride And Kathmandu Hybrid (2025)

£14.00

Scott

34.9mm Seatclamp With Cromoly Bolt

£10.00

Cannondale

S6 EVO Internal Seat Binder V2

£26.99  
Was  £29.99   | Save  £3.00   (10%)

Cannondale

KNOT System Six Aero Seat Binder

£35.99  
Was  £39.99   | Save  £4.00   (10%)

Giant

TCR Advanced And Advanced Pro Seat Clamp

£10.99

Wolf Tooth Components

Seatpost Clamp

£25.00  
Was  £29.00   | Save  £4.00   (14%)
Available Colours
Available Sizes

Hope Technology

Bolted Seat Clamp

£21.00  
Was  £23.00   | Save  £2.00   (9%)
Available Colours
Available Sizes

Giant

Integrated Seatpost Clamp For Propel Advanced (2023)

£19.99

Giant

Defy ISC Clamp (2023)

£14.99

Cervelo

Seat Post Clamp 287A

£20.00

Most

Pinarello Dogma F Twin Force Seat Clamp Kit

£55.00

Giant

Propel Advanced Seatpost Clamp

£10.99

Giant

ISC Rubber Cover For Defy Advanced Pro And SL (2024)

£10.00

Giant

Defy Alloy ISC Seat Clamp With M5 Bolt

£20.00

Giant

CL-M5B 35mm Bolted Seat Clamp

£10.00

Giant

TCR ISC Seat Clamp (2025)

£20.00

Giant

TCR ISC Rubber Cover - 20.2 x 33.5mm (2025)

£10.00

Giant

TCR Alloy ISP Clamp With Carbon Cap - Regular (2025)

£140.00

Orbea

Seatpost Clamp For Muga (2026)

£18.00

Orbea

31.8mm Seatpost Clamp (2026)

£12.00

CUBE

Seatpost Clamp For Stereo Hybrid 140/160

£19.00

CUBE

Seatpost Wedge Kit For Agree C:62 Kit (2022)

£20.00

CUBE

QR Seat Clamp For Elite Hybrid

£18.00

CUBE

Seatpost Clamp For Agree, Nuroad And Nulane C:62

£24.95

CUBE

Seatpost Wedge For Litening

£54.99

Hope Technology

Quick Release Seat Clamp

£27.00  
Was  £29.00   | Save  £2.00   (7%)
Available Sizes

Giant

ISC Clamp For 2025 TCR

£14.99

Giant

TCR/Defy Vector Aero Seat Clamp

£14.99

Orbea

Front Post Clamp Kit For Ordu OMX

£17.00

Giant

ISC Cover For 2021 TCR

£12.00

Scott

34.9mm Seatclamp For Spark (2022)

£26.00

Cannondale

QR Seatbinder (31.8mm)

£12.99
Available Colours

Giant

Defy ISC Cover (2023)

£12.00

Giant

Propel Advanced SL ISP Clamp (2022)

£109.99

Giant

ISC For 2022 Langma

£14.99

Giant

Integrated Seat Clamp For 2019 Defy

£14.99

Giant

34.9mm Quick Release Seat Clamp With Pannier Rack Mounts

£11.00

Giant

Integrated Seat Clamp Cover

£9.99

Burgtec

Seat Clamp

£21.99
Available Colours
Available Sizes

Giant

LP09G Seatclamp - Red

£9.99
Available Sizes

Orbea

37mm Seatpost Clamp For Oiz Carbon

£18.00

Scott

Plasma TT Seatpost Clamp (2023)

£21.00

CUBE

Seatpost Cover For Cross Race C:68 (2023)

£13.00

Giant

CL-GANTH Seat Clamp

£11.00

Giant

G16SC2 Integrated Seatpost Clamp For Trinity Advanced

£11.99

Giant

523Q Aluminium Seatclamp - 35mm

£9.99

Gusset

Clench Seatclamp

£7.99
Available Sizes

Cannondale

27.2mm Internal Seat Binder

£19.99

Giant

Seat Clamp And Bolt Set For G16SP1 Variant

£19.99

Cannondale

CAAD13 Internal Seat Binder

£24.99

Seat post clamps provide that neat finishing touch to your frame, they are often available in anodised colours to match the rest of your bike. We list a range of clamps with both quick release for quick and simple saddle height adjustment, as well as traditional allen key versions, ideal for the times when security is a priority.

Even in an office full of diehard cyclists, it’s often difficult to get people excited when talking about Seatpost Clamps - these clamps, however, are some of the most important components of any bike. Seatpost Clamps are small, but mighty components, without which would render a bike completely unrideable. These clamps are a circular metal ring/collar which sits at the top of the seat tube, gripping the tube and holding the seat-post in place, ensuring that the saddle/seat does not spin round, whilst ensuring the seat-post does not retreat into the frame of the bike

Although bikes do come with a seat-post clamp as standard, there may be a few reasons to buy one - many customers buy these clamps to improve how their bike looks, or are buying a new clamp to replace an older, damaged clamp. Common damage on seat-post clamps includes stripped threads, providing an un-secure fit. 

Materials and designs of seat-post clamps remain the same, across all kinds of different bikes - including BMXs, Mountain Bikes, as well as Road Bikes. Although there are a few considerations to consider. One of the most important factors with any Seatpost Clamp is the internal diameter of the clamp - which for obvious reasons must match up. To make things a little easier, there are five different seat diameters available on the market, which are as follows: 

  • 28.6mm
  • 30.0mm
  • 31.8mm
  • 34.9mm
  • 36.4mm 

A lot of Seat Clamps sold also feature a quick release closure, which uses a small yet strong lever to close the collar on the seat clamp - which means you can open and close the clamp quickly and easily. This is ideal for riders who look to adjust the height of their seat whilst out riding, mostly mountain bike riders looking for a different body position on downhill trails. Although there are clear benefits of using QR seat clamps, many riders choose not to use them - especially commuters who can have their seat stolen quickly. The rock solid grip of a bolt closure seat clamp is also better for road cyclists who want a secure grip. 

At Westbrook Cycles, we stock a fantastic range of Seat Clamps - working with the very best cycling component companies adding not only a stylish addition to your frame, but an important one too. Brands within this range include Cannondale, Colnago, Wolf Tooth Components and Scott

You can view the full range above, and as always - please do get in touch if you have any questions about the collection.