Name: S-Works Tarmac Carbon Post
Brand: Specialized
SKU: 28121-3915
Price: 325.0 CAD
Availability: OutOfStock

$249.99 $325.00

Shipping calculated at checkout.

Loading shipping policy…

Returns & Exchanges Policy

Loading returns policy…

Size

300mm x 0mm Offset

300mm x 20mm Offset

380mm x 0mm Offset

380mm x 20mm Offset

In stock, ready to ship
Backordered, shipping soon

UPC / SKU

UPC: 888818665457
SKU: 28121-3915

Checking availability…

Check availability at other stores

Multiple Financing Options

FREE SHIPPING on eligible orders over $150

Secure checkout

{"id":47524261920955,"title":"380mm x 20mm Offset","option1":"380mm x 20mm Offset","option2":null,"option3":null,"sku":"28121-3915","requires_shipping":true,"taxable":true,"featured_image":{"id":55461813321915,"product_id":8341416018107,"position":1,"created_at":"2026-10-21T12:58:12-04:00","updated_at":"2026-10-21T12:58:15-04:00","alt":null,"width":2048,"height":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/28121-390_CMPNT_SW-TARMAC-CARBON-POST-300MM-0-OFFSET_HERO-SQUARE.jpg?v=1792601895","variant_ids":[47524261855419,47524261888187,47524261920955,47897303417019]},"available":true,"name":"S-Works Tarmac Carbon Post - 380mm x 20mm Offset","public_title":"380mm x 20mm Offset","options":["380mm x 20mm Offset"],"price":24999,"weight":299,"compare_at_price":32500,"inventory_management":"shopify","barcode":"888818665457","featured_media":{"alt":null,"id":46461280649403,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/28121-390_CMPNT_SW-TARMAC-CARBON-POST-300MM-0-OFFSET_HERO-SQUARE.jpg?v=1792601895"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

S-Works Tarmac Carbon Post $325.00 $249.99

Size: 380mm x 20mm Offset

Checking pickup availability

S-Works Tarmac Carbon Post

This replacement seatpost for the Tarmac SL7 ensures the perfect fit with two different setback options—0mm and 20mm.

FACT carbon construction and aerodynamic profile compatible with the 2021 Tarmac SL7.
Setback: 0/20mm.
Sleek Di2 integration hides the Di2 junction box inside.
Cylindrical aluminum head assembly adjusts fore-aft and tilt with an easy-access single bolt.

Bike shipping: $100 for non-electric bikes; $250 for e-bikes.

Higher rates apply to certain long-distance destinations, including Newfoundland and Labrador. Additional charges may apply to remote or rural locations and oversized or overweight items.

Free standard shipping on eligible orders over $150, excluding bikes and e-bikes.

Your shipping charge is shown at checkout before you place your order.

Read full Shipping & Delivery Policy

Request deadline: Within 7 days of receiving your bike or 14 days of receiving other items.
Condition: Brand-new, never used, and in original packaging. Bikes must be never ridden.
Final sale: Sale and special-order items cannot be returned or exchanged. A discount code on a regular-price item does not make it final sale.
Return deadline: Approved items must reach us within 7 days of approval.
Processing fee: 5% of the amount paid for returned items, excluding taxes and shipping, is deducted from your refund—even for returns brought to a store.
Shipping: You pay return shipping or may bring approved returns to either store. Original delivery charges are non-refundable.
Start a return: Submit our Online Orders Support form and wait for approval before returning anything.

Read full Returns & Exchanges Policy

For answers to frequently asked questions, visit our FAQ page.

Need help or have a question? Contact Us by email, phone or come see us in person - we’re always happy to help.

S-Works Tarmac Carbon Post

Product Specifications

missisauga store

barrie store

online orders support