Go to your account

Westbrook Cycles Logo

(+44) 1642 710232

View your wishlist

View your basket

Main navigation

Skip to main content

Shop by category

Cyclocross And Gravel Bikes

Hybrid And Urban Bikes

Pre-Loved And Ex-Display Bikes

Road Bike Frames

Cyclocross And Gravel Frames

Full Suspension MTB Frames

Hardtail MTB Frames

Cervelo Soloist

Topstone Carbon

Electric Mountain Bikes

Electric Road Bikes

Electric Gravel Bikes

Electric Hybrid Bikes

Electric Cargo Bikes

Cube Stereo Hybrid

Bike Accessories

Locks And Security

Bags And Back Packs

Bikepacking Bags

Commuter Bike Luggage

Bike Storage And Transport

Bike Bags And Boxes

Bike Storage And Display

Tools And Maintenance

Brushes And Cleaning Tools

Degreasers And Cleaning

Grease And Assembly Lubes

Mechanic's Wear

Suspension Servicing

Tubeless Sealant

Wheel Building Equipment

Arm And Leg Warmers

Mountain Bike Goggles

100% Sunglasses And Eyewear

Gravel Bike Shoes

Indoor Training Shoes

Mountain Bike Shoes

Road Bike Shoes

Triathlon Shoes

Spatz Overshoes

Cantilever Brakes

Disc Brake Pads

Disc Brake Rotors

Drop Bar Brake Levers

Road Brake Pads

Mountain Bike Brake Pads

CX/Gravel Bike Forks

Road Bike Forks

Suspension Forks

Rockshox BoXXer

All Rockshox Forks

Marzocchi Forks

MTB Fork Service Kit

MTB Rigid Forks

Scott Road Bike Forks

Frameset Spares

Chainstay Protectors

Dropouts/Derailleur Hangers

E-Bike Batteries

E-Bike Chargers

Frame Protection

Lock Out Levers

MTB Frame Protection Kits

Handlebars & Stems

Comfort Handlebar Grips

Gravel Bike Handlebars

Handlebar Grips

Handlebar Stems

Mountain Bike Stems

Road Bike Handlebars

Road Bike Stems

Gravel Bike Pedals

MTB Clipless Pedals

Pedal Service And Rebuild Kits

Fox Rear Shocks

Rear Shock Springs

Carbon Bike Saddles

Mountain Bike Saddles

Road Bike Saddles

Short Nose Saddles

Triathlon Saddles

Alloy Seatposts

Carbon Seatposts

Dropper Seatposts

Seatpost Spares

Puncture Repair

Tubeless Components

MTB Tyre Inserts

Tubeless Rim Tape

Tubeless Sealants

Tubeless Valves

Bottom Brackets

Cranksets E-Bike

E-Bike Chainrings

Electronic Transmission

Front Derailleurs

Gear Shifters MTB

Gear Levers Road

Oversize Pulley Wheels (OSP)

Press Fit Bottom Brackets

Rear Derailleurs

Downhill MTB Tyres

Folding Bike Tyres

Gravel Bike Tyres

Hybrid Bike Tyres

Indoor Trainer Tyres

Tubeless MTB Tyres

Reflective Bike Tyres

Road Bike Tyres

Tubeless Road Bike Tyres

Winter MTB Tyres

Winter Road Bike Tyres

Aero Road Wheels

All Wheel Spares

Carbon Road Wheels

Complete Wheels

Downhill Wheels

E-Bike Rims And Wheels

Gravel Bike Wheels

High Engagement Hubs

Helmets & Protection

Commuter Helmets

Dirt Jump And BMX Helmets

Full-Face Helmets

Half-Shell Helmets

Kids/Youth Helmets

Road Aero Helmets

Top Suits & Chest/Back Protectors

Protective Shorts

Wrist Supports, Guards And Wraps

Kids Body Armour

Troy Lee Designs Helmets

POC Body Armour

Endura Knee Pads

Training & Energy

Garmin Mounts And Accessories

Heart Rate Monitors

Elite Turbo Trainers

Garmin Rally Power Meters

Aero Gravel Bikes

Aluminium Gravel Bikes

Carbon Gravel Bikes

Cannondale Gravel Bikes

Cyclocross Bikes

Whyte Gravel Bikes

Dirt Jump Bikes

Downhill Mountain Bikes

Full Suspension

Kids Mountain Bikes

Kids Full Suspension MTB

Lightweight Mountain Bikes

Giant Full Sus MTB

Giant Hardtail MTB

Scott Full Sus MTB

Scott Hardtail MTB

MTB By Frame Material

Bosch Electric Mountain Bikes

Electric Enduro Bikes

Electric XC Mountain Bikes

Full Suspension E-MTBs

Hardtail E-MTBs

Lightweight eMTBs

Bergamont E-MTBs

Cannondale E-MTBs

Whyte Hardtail eMTBs

Whyte Full Suspension eMTBs

Disc Brake Road Bikes

Endurance/Sportive

Tri Specific Bikes - Non UCI

TT/Tri Bikes - All

Rim Brake Road Bikes

Road Bike Brands

Cannondale Road Bikes

Giant Road Bikes

Cervelo Road Bikes

Pinarello Road Bikes

Kinesis Road Bikes

Colnago Road Bikes

Scott Road Bikes

Road by Frame Material

Carbon Fibre Road

Electric Gravel

Electric Hybrid

Cannondale E-Road

Hybrid And Urban Bikes

Bergamont Hybrid

Bergamont E-Hybrid

Cannondale Hybrid and Urban Bikes

Giant Hybrid and Urban Bikes

Ladies Hybrid Bikes

Scott Hybrid and Urban Bikes

Gravel Bikes Under £1000

Gravel Bikes Under £1500

Gravel Bikes Under £2000

Gravel Bikes Under £3000

Gravel Bikes Under £5000

MTBs Below £500

MTBs Below £1000

MTBs Below £2000

MTBs Below £3000

MTBs Below £4000

MTBs Below £7500

MTBs Below £10000

Road Bikes Below £1000

Road Bikes Below £1500

Road Bikes Below £2000

Road Bikes Below £3000

Road Bikes Below £5000

Road Bikes Around £10000

E-Bikes By Price

E-MTBs Below £2000

E-MTBs Below £3000

E-MTBs Below £5000

E-MTBs Below £7500

E-MTBs Around £10000

Bergamont Bikes

Cannondale Bikes

Kinesis UK Bikes

Argon 18 Ranges

Cannondale Ranges

Cervélo Ranges

Reaction Hybrid

Giant Mountain Ranges

Giant Road/Gravel Ranges

Orbea Mountain Ranges

Orbea Road Ranges

Pinarello Ranges

Scott Mountain Ranges

Scott Road/Gravel Ranges

Speedster Gravel

Bike Accessories

Aero Water Bottles

Carbon Bottle Cages

Chainstay Protectors

Front Mudguards

Commuter Bike Lights

Front And Rear Light Sets

Helmet Mounted Lights

Mountain Bike Lights

MTB Helmet Lights

Rear Bike Lights

Rechargeable Bike Lights

Road Bike Lights

USB Bike Lights

Lights By Brand

Exposure lights

Mini Bike Pumps

Track/Floor Pumps

Home Bike Locks

Sold Secure Gold

Bike Lock Buying Guide

Bottle & Cage Buying Guide

Mudguards Buying Guide

Backpacks With Back Protection

Bike Saddle Bags

Cycling Kit Bags

Hydration Packs

Mountain Bike Backpacks

Mountain Bike Bags

Storage & Transport

Bike Wheel Bags

Mountain Bike Travel Bags

Road Bike Travel Bags

Cactus Tongue Wall Storage

Evoc Bags & Backpacks

Apidura Bikepacking Bags

Lezyne Bags & Saddle Bags

Restrap Bikepacking Bags

Topeak Storage & Transport

Apidura Range Highlight

Clothing & Protection

Dainese MTB Body Armour

Scott Body Armour

Troy Lee MTB Body Armour

Clothing By Brand

Castelli Clothing

Endura Clothing

Madison Clothing

Mons Royale Clothing

Troy Lee Clothing

Featured Clothing

Castelli Base Layers

Castelli Jackets

Castelli Jerseys

Castelli Shorts

Compression Cycling Clothing

Compression Socks

Endura Base Layers

Hoodies And Sweatshirts

Shorts And Bibshorts

Troy Lee Casual

Waterproof Cycling Socks

Helmets By Brand

Scott Bike Helmets

Troy Lee Helmets

Kids Clothing And Helmets

Kids Cycling Jerseys

Kids MTB Helmets

Kids MTB Jerseys

Kids MTB Knee Pads

Kids MTB Shorts

Baggy Mountain Bike Shorts

Camouflage MTB Clothing

Troy Lee Jerseys

Troy Lee Shorts

Troy Lee Trousers

Five Ten Freerider Pro

Five Ten Impact Pro

Five Ten Trailcross

All Five Ten MTB Shoes

Fi'zi:k MTB Shoes

Scott Mountain Bike Shoes

Commuter Cycling Clothing

Reflective Cycling Clothing

Shorts & Bibshorts

Tights & Bib Tights

Buffs And Neckwarmers

¾ Cycling Tights

Assos Fall/Winter 2022

Men's Road Shoes

Women's Road Shoes

Fi'zi:k Road Shoes

Scott Road Shoes

Shimano Road Shoes

Sidi Road Shoes

Helmet Accessories And Spares

All Enduro Bearings

E-Bike Cassettes

Gravel Bike Cassettes

Mountain Bike Cassettes

Road Bike Cassettes

Shimano 10 Speed Cassettes

Shimano 11 Speed Cassettes

Shimano 12 Speed Cassettes

Sram 10 Speed Cassettes

Sram 11 Speed Cassettes

Sram 12 Speed Cassettes

13 Speed Cassettes

11 Speed Chains

12 Speed Chains

MTB Disc Brakes

Road Disc Brakes

Sram MTB Brakes

Aero/TT Handlebars

Carbon Handlebars

Drop Handlebars

Shimano Groupsets

Mountain Series

Road And Gravel Series

Aluminium Mountain Bike Frames

Aluminium Road Bike Frames

Carbon Fibre MTB Frames

Carbon Road Bike Frames

Colnago Road Bike Frames

Cyclocross Frames

Gravel Bike Frames

Kinesis UK Framesets

Cleaning Brushes & Tools

Greases, Sealants, Oils & Lubricants

Shimano Mineral Oil

Shimano Bleed Kits

Bottom Bracket Tools

Cassette Lockring Tools

Cassette Removal Tools

Crank Removal Tools

MTB Shock Service Kit

Torque Wrenches

New Bike Ranges And Highlights

Orbea Orca - Praise The Light

2022/23 Whyte Bikes Range Highlight

The New Scott Solace

The New Scott Lumen eRide

The New Scott Scale RC

2023 Scott Genius 900 And Genius ST

2023 All New SuperSix Evo

Cannondale Habit And Habit LT 2023

Scott Brand Focus

The New Orbea Occam SL And LT

Cannondale E-Cargo Bikes

Orbea Rise - The Best Just Got Better

Pinarello Dogma X

Introducing The Cannondale Moterra SL

The New GASGAS MXC

2024 New Scalpel - Hold On Tight

2025 New Scott Addict RC

2025 Cannondale Synapse With Gen2 SmartSense

2025 Pinarello Dogma F

The New Whyte Kado

Scott Voltage eRide - See The Light

The All New Scott Ransom 2024

Whyte E-Lyte 140 Works

2023 Cannondale Mavaro Neo 3

Westbrook X Pinarello

Westbrook Welcomes Cervelo

Introducing The GASGAS ECC

2023 Cannondale Tesoro Neo X 2

Cadex Performance Products

2022 The New Scott Spark

Never Not Fun - Cannondale Habit Hardtail

Training & Energy

Indoor Trainers

Smart Turbo Trainers

Turbo Trainer Accessories

Zwift Compatible Trainers

Cyclocross/Gravel Bike Power Meters

Mountain Bike Power Meters

Power Meter Pedals

Road Bike Power Meters

Vegetarian/Vegan Energy Food

Training & Accessories

GPS Cycling Computers

Heart Rate Monitors

Mountain Bike Sale

Gravel Bike Sale

MTB Clothing Sale

Mons Royale Sale

Road Clothing Sale

View All Clearance

Troy Lee Designs Sale

Enduro Bearings

OneUp Components

Redshift Sports

Sweet Protection

View all brands

Go to your account

View your wishlist

View your basket

Home >
Components >
Frameset Spares >
Front Derailleur Blanking Plug - Dark Matter/Krypton/SUM

Front Derailleur Blanking Plug - Dark Matter/Krypton/SUM

Zoom

81240

Argon 18
Front Derailleur Blanking Plug - Dark Matter/Krypton/SUM

£10.00

- +

Add to basket Email when back in stock

Xmas Spend And Save

Description
Delivery
Returns

Genuine Replacement Argon 18 Front Derailleur Blanking Plug.

Fits: Dark Matter/Krypton/SUM

Genuine Replacement Argon 18 Front Derailleur Blanking Plug.

Fits: Dark Matter/Krypton/SUM

Footer

Westbrook Cycles Logo

(+44) 1642 710232

Customer Info
Bike Assembly Guide Bike Part Finder Cookie Policy Privacy Policy Complaints Policy Vulnerable Customer Policy Cycle To Work Schemes Discount Codes

Orders
Delivery & Returns FAQ's Terms & Conditions V12 Finance Information Gift Vouchers

Our Store
About Us & Opening Times Careers Blog Contact Us Workshop Pricing

Customer Info

Bike Assembly Guide
Bike Part Finder
Cookie Policy
Privacy Policy
Complaints Policy
Vulnerable Customer Policy
Cycle To Work Schemes
Discount Codes

Orders

Delivery & Returns
FAQ's
Terms & Conditions
V12 Finance Information
Gift Vouchers

Our Store

About Us & Opening Times
Careers
Blog
Contact Us
Workshop Pricing

Sign up to our newsletter for info, news and offers

Social Media

© 2025 Westbrook Cycles . All Rights Reserved.
Ecommerce platform by Remarkable Commerce
Westbrook Cycles Limited is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 657570. Westbrook Cycles Limited offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance.
Credit is provided subject to affordability, age and status. Minimum spend applies. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority.
Our registered office address is Unit 9 Terry Dicken Business Park, Ellerbeck Way, Stokesley, North Yorkshire, TS9 7AE
VAT no. 409256690. Company registration number 06841321.