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Shimano

BL-U5000 Funnel Adapter

£1.99

Halo

0.8mm Cassette Spacer

£1.99
Available Sizes

Halo

1mm Cassette Spacer

£2.49
Available Sizes

Syncros

Glueless Patch Kit

£2.50

TRP

Mounting Bolt For Flat Mount Rear Disc Brake Calipers

£2.50
Available Sizes

Shimano

TL-BR52 Brake Bleed Adapter And O-Ring

£2.99

Shimano

ST-U5060 Funnel Adapter And O-Ring

£2.99

Shimano

ST-R9120 Funnel Adapter And O-Ring

£2.99

Burgtec

Stem Top Cap Bolt

£3.49
Available Colours

Halo

7 Speed Cassette Spacer - 4mm

£3.49

Granite

Stash Tyre Plug Kit Refill (10 pcs)

£3.95
Available Sizes

Vision

Bar Shim 31.8 - 26.0mm (4 Pack)

£3.95

FSA

1.1/8" Star Nut Assembly - Black

£3.99

Halo

Disc Rotor Bolts - T25 M5x0.8x15

£3.99

Lezyne

Classic Patch Kit

£3.99

Lezyne

Smart Patch Kit

£3.99

HT Components

Replacement Pin Kit For AE03/ME03 Pedals (40 Pack)

£3.99
Available Colours

Muc-Off

B.A.M! Utility Belt

£3.99  
Was  £4.99   | Save  £1.00   (20%)

Hope Technology

Bleed Kit Nipple Adaptor - Small - Silver

£4.00

Hope Technology

Pro 5 Labyrinth Seal - Drive Side

£4.00

Hope Technology

Drive Side Labyrinth Seal For Pro 4 Hub

£4.00

Hope Technology

Head Bolt

£4.00
Available Colours

Hope Technology

Tech 3 Lever Pivot

£4.00
Available Colours

Hope Technology

Pro 5 Barrel Spacer - 11-Speed/XD

£4.00

Hope Technology

Pro 5 Barrell Spacer - MicroSpline

£4.00

Hope Technology

S689 Sealed Roller Bearing

£4.00

Hope Technology

Top Cap Bolt

£4.00
Available Colours

Peaty's

Holeshot Tubeless Puncture Plugger Refill Pack (6 x 3mm)

£4.49  
Was  £4.99   | Save  £0.50   (10%)
Available Sizes

Peaty's

Holeshot Tubeless Puncture Plugger Refill Pack (6 x 1.5mm)

£4.49  
Was  £4.99   | Save  £0.50   (10%)
Available Sizes

Bosch

Slim Wheel Sensor Holder Kit

£4.99

Halo

Valve Extender

From  £4.99  
Was  £5.49   | Save  £0.50   (9%)
Available Colours
Available Sizes

MAHLE

X35+ Silicone Band For External Battery

£4.99

Cannondale

C1 Conceal Cover

£4.99

Enduro Bearings

605 2RS Sealed Bearing (ABEC 3)

£4.99

RRP

ValveGuards

£4.99

FSA

E-Bike Crank Bolts (Bosch Gen 3)

£4.99

Gusset

Handlebar Shims

£4.99
Available Sizes

Gusset

S2 Handlebar Decals

£4.99
Available Colours

Topeak

Tubeless Repair Plugs

£4.99

Topeak

Tubi Plug Box Tubeless Tyre Repair Kit

£4.99

MAHLE

X35+ One Curved Holder

£4.99

MAHLE

X35+ One Flat Holder

£4.99

MAHLE

X35+ Torque Washer

£4.99

Gusset

BMX Push-In Handlebar Plugs

£4.99
Available Colours

Gusset

Head-Boy 1-1/8" Stem Cap

£4.99

MAHLE

X35+ Freewheel Lock Nut

£4.99

Enduro Bearings

1614 2RS - ABEC 3 Bearing

£4.99

Hope Technology

Pro 5 Drive Side Seal Cover - 11-Speed/XDR

£5.00

Hope Technology

Pro 5 Drive Side Seal Cover - MicroSpline

£5.00

Bergamont

Downtube Powertube Rubber Plug (2020)

£5.00

Scott

Syncros Dropper Seatpost Cable Barrel

£5.00

Hope Technology

Pro 5 Drive Side Seal Cover - XD/SS/Trials

£5.00

X-Fusion

DU Bushing - Type 1 (12mm)

£5.00
Available Sizes

Argon 18

SUM Pro Water Bottle Screw - M5 x 18mm

£5.00

Argon 18

Krypton/Gallium Water Bottle Bolt (M5x14mm)

£5.00

Orbea

DP-MC22 Dropper Reducer Bushings Kit

£5.00

Renthal

Handlebar Grip Glue (25ml)

£5.95
Available Sizes

Enduro Bearings

1616 2RS Sealed Bearing (ABEC 3)

£5.99

Enduro Bearings

6000 LLB Sealed Bearing (ABEC 3)

£5.99

Enduro Bearings

608 LLB Sealed Bearing (ABEC 3)

£5.99
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Welcome to our full range of quality bike parts and components here at Westbrook Cycles. Whether you're looking to carry out a simple upgrade, or completely kit-out your favourite cycle; we offer all of the parts and specialised bike components you'll need to see the job through.

Bikes are as simple or as complicated as you want to make them, for the casual rider, there might only be a handful of bike components which are given much thought at all; whereas the serious roadie will look to optimise each intricate mechanism and part to get the absolute maximum potential out of the bike. Switching out the bigger components, such as the wheels, frames and saddle will likely have the most appreciable impact on the look, feel and performance of the bike. If you’re looking for an immediate difference maker, and don’t want to invest in a new bike, we’d recommend upgrading stock parts with quality bike components.

We’ve got one of the widest ranges of bike parts and components available anywhere online, and if you’re looking for replacement bike parts, Westbrook Cycles has it all - from drivetrain, groupset and mech parts to handlebars, specialised pedals, seatposts/seatpost spares and lightweight forks.

Upgrading your bike is one of the most enjoyable aspects of cycling, and with thousands of video tutorials online and a massive selection of bespoke components from the biggest brands in the industry, there’s no reason not to give it a try. We’ve got the latest bike components from Hope Technology, Cannondale and more. Of course if a task does get a little out of hand and you’re scratching your head trying to piece your cassette back together, head on down to see a professional & have your new bike components fitted professionally.

One of the most important and popular categories of products is our mountain bike & road bike transmission spares and components, this range encompasses everything a rider needs to bring their bikes transmission back to running perfectly, and this range includes cassettes, bottom brackets, chain rings and derailleurs.

Lastly, and possibly most importantly is a good set of tyres. This is (hopefully) the only part of the bike in contact with the ground so it is important that you have a set of tyres that you can trust and feel confident in. Our selection of road, MTB, cyclocross and gravel bike tyres are sure to give you the confidence you need to push your performance, or just give that extra layer of puncture protection.