Skip to content

Your cart is empty

Continue shopping

Have an account?

Log in to check out faster.

Your cart

Loading...

Estimated total

$0.00 USD

Taxes, discounts and shipping calculated at checkout.
  • Facebook
  • Instagram

Bike Boss - Home of West Coast Bikes

  • Home
  • Service
  • Frames
  • Shop Parts
    • Braking
      • Disc Brakes/Parts
      • Brakes
      • Brake Cable
      • Brake Kits
      • Brake Levers
      • Brake Pads
    • Drivetrain
      • Chains
      • Chainrings/Bolts
      • Chain Tensioners
      • Cogs
      • Cranks/Bottom Brackets
      • Pedals
    • Seating
      • Saddles
      • Seatposts
      • Seatpost Clamps
    • Steering
      • Forks
      • Grips
      • Handlebars
      • Headsets/Spacers
      • Stems
    • Wheels
      • Complete Sets
      • Hubs
      • Rims
      • Rim Strips
      • Tires
      • Tubes
    • Miscellaneous
      • Apparel
      • Protective Wear
      • Gift Cards
      • Stickers
      • Plates
  • West Coast Bikes
    • Custom Completes
    • Forks
    • Frames
    • Handlebars
    • Rims
    • Small Parts
    • Seat/Seatposts
    • Wheels
    • ALL WCB PRODUCTS
  • Contact
Log in
  • Facebook
  • Instagram
Bike Boss
  • Home
  • Service
  • Frames
  • Shop Parts
    • Braking
      • Disc Brakes/Parts
      • Brakes
      • Brake Cable
      • Brake Kits
      • Brake Levers
      • Brake Pads
    • Drivetrain
      • Chains
      • Chainrings/Bolts
      • Chain Tensioners
      • Cogs
      • Cranks/Bottom Brackets
      • Pedals
    • Seating
      • Saddles
      • Seatposts
      • Seatpost Clamps
    • Steering
      • Forks
      • Grips
      • Handlebars
      • Headsets/Spacers
      • Stems
    • Wheels
      • Complete Sets
      • Hubs
      • Rims
      • Rim Strips
      • Tires
      • Tubes
    • Miscellaneous
      • Apparel
      • Protective Wear
      • Gift Cards
      • Stickers
      • Plates
  • West Coast Bikes
    • Custom Completes
    • Forks
    • Frames
    • Handlebars
    • Rims
    • Small Parts
    • Seat/Seatposts
    • Wheels
    • ALL WCB PRODUCTS
  • Contact
Log in Cart

Filter:

Availability
0 selected
Reset
Availability
Price
The highest price is $59.99 Reset
$
$
Remove all

5 products

Filter and sort Filter

Filter and sort

Filter

5 products

Availability
Clear
Price

The highest price is $59.99

$
$
Clear
Remove all
Remove all

5 products

  • Insight Seat Post Extender

    Insight Seat Post Extender

    Insight Seat Post Extender

    Regular price $37.99 USD
    Regular price Sale price $37.99 USD
    Unit price /  per 
  • MCS HotStick Seat Post Extender 27.2

    MCS HotStick Seat Post Extender 27.2

    Sold out

    MCS HotStick Seat Post Extender 27.2

    Regular price $54.99 USD
    Regular price Sale price $54.99 USD
    Unit price /  per 
    Sold out
  • POSITION ONE PIVOTAL ALLOY SEAT POST

    POSITION ONE PIVOTAL ALLOY SEAT POST

    POSITION ONE PIVOTAL ALLOY SEAT POST

    Regular price From $20.99 USD
    Regular price Sale price From $20.99 USD
    Unit price /  per 
  • West Coast Bikes 27.2 Alloy Seatpost

    West Coast Bikes 27.2 Alloy Seatpost

    West Coast Bikes 27.2 Alloy Seatpost

    Regular price $21.99 USD
    Regular price Sale price $21.99 USD
    Unit price /  per 
  • West Coast Bikes Carbon Seatpost

    West Coast Bikes Carbon Seatpost

    West Coast Bikes Carbon Seatpost

    Regular price $59.99 USD
    Regular price Sale price $59.99 USD
    Unit price /  per 

Subscribe to our emails

Subscribe to our mailing list for insider news, product launches, and more.

  • Facebook
  • Instagram
Payment methods
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
© 2025, Bike Boss Powered by Shopify
  • Refund policy
  • Privacy policy
  • Terms of service
  • Contact information
  • Choosing a selection results in a full page refresh.
  • Opens in a new window.