Name: Ultegra CS-R8100 Series 12-Speed Cassette
Brand: Shimano
SKU: ICSR810112130
Price: 171.99 CAD
Availability: InStock

Ultegra CS-R8100 Series 12-Speed Cassette

$171.99

Shipping calculated at checkout.

Loading shipping policy…

Returns & Exchanges Policy

Loading returns policy…

Options

Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver

Ultegra CS-R8100 Cassette - 12-Speed, 11-30t, Silver

Ultegra CS-R8101 Cassette - 12-Speed, 11-34t, Silver

Ultegra CS-R8100 Cassette - 12-Speed, 11-34t, Silver

In stock, ready to ship
Backordered, shipping soon

UPC / SKU

UPC: 192790849898
SKU: ICSR810112130

Checking availability…

Check availability at other stores

Multiple Financing Options

FREE SHIPPING on eligible orders over $150

Secure checkout

[{"id":47524495818939,"title":"Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver","option1":"Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver","option2":null,"option3":null,"sku":"ICSR810112130","requires_shipping":true,"taxable":true,"featured_image":{"id":55394961850555,"product_id":8341532082363,"position":4,"created_at":"2026-10-16T20:48:54-04:00","updated_at":"2026-10-16T20:48:55-04:00","alt":null,"width":2048,"height":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/FW0318.jpg?v=1792198135","variant_ids":[47524495818939]},"available":true,"name":"Ultegra CS-R8100 Series 12-Speed Cassette - Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver","public_title":"Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver","options":["Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver"],"price":17199,"weight":386,"compare_at_price":null,"inventory_management":"shopify","barcode":"192790849898","featured_media":{"alt":null,"id":46394705215675,"position":4,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/FW0318.jpg?v=1792198135"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":67721031680187,"title":"Ultegra CS-R8100 Cassette - 12-Speed, 11-30t, Silver","option1":"Ultegra CS-R8100 Cassette - 12-Speed, 11-30t, Silver","option2":null,"option3":null,"sku":"ICSR810012130","requires_shipping":true,"taxable":true,"featured_image":{"id":55394961752251,"product_id":8341532082363,"position":1,"created_at":"2026-10-16T20:48:54-04:00","updated_at":"2026-10-16T20:48:55-04:00","alt":null,"width":2048,"height":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/FW0082.jpg?v=1792198135","variant_ids":[67721031680187]},"available":false,"name":"Ultegra CS-R8100 Series 12-Speed Cassette - Ultegra CS-R8100 Cassette - 12-Speed, 11-30t, Silver","public_title":"Ultegra CS-R8100 Cassette - 12-Speed, 11-30t, Silver","options":["Ultegra CS-R8100 Cassette - 12-Speed, 11-30t, Silver"],"price":14999,"weight":386,"compare_at_price":null,"inventory_management":"shopify","barcode":"192790893761","featured_media":{"alt":null,"id":46394705117371,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/FW0082.jpg?v=1792198135"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":47909560189115,"title":"Ultegra CS-R8101 Cassette - 12-Speed, 11-34t, Silver","option1":"Ultegra CS-R8101 Cassette - 12-Speed, 11-34t, Silver","option2":null,"option3":null,"sku":"ICSR810112134","requires_shipping":true,"taxable":true,"featured_image":{"id":55394961883323,"product_id":8341532082363,"position":5,"created_at":"2026-10-16T20:48:54-04:00","updated_at":"2026-10-16T20:48:55-04:00","alt":null,"width":2048,"height":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/FW0319.jpg?v=1792198135","variant_ids":[47909560189115]},"available":true,"name":"Ultegra CS-R8100 Series 12-Speed Cassette - Ultegra CS-R8101 Cassette - 12-Speed, 11-34t, Silver","public_title":"Ultegra CS-R8101 Cassette - 12-Speed, 11-34t, Silver","options":["Ultegra CS-R8101 Cassette - 12-Speed, 11-34t, Silver"],"price":17199,"weight":499,"compare_at_price":null,"inventory_management":"shopify","barcode":"192790849881","featured_media":{"alt":null,"id":46394705248443,"position":5,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/FW0319.jpg?v=1792198135"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":67721031712955,"title":"Ultegra CS-R8100 Cassette - 12-Speed, 11-34t, Silver","option1":"Ultegra CS-R8100 Cassette - 12-Speed, 11-34t, Silver","option2":null,"option3":null,"sku":"ICSR810012134","requires_shipping":true,"taxable":true,"featured_image":{"id":55394961785019,"product_id":8341532082363,"position":2,"created_at":"2026-10-16T20:48:54-04:00","updated_at":"2026-10-16T20:48:55-04:00","alt":null,"width":2048,"height":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/FW0083.jpg?v=1792198135","variant_ids":[67721031712955]},"available":false,"name":"Ultegra CS-R8100 Series 12-Speed Cassette - Ultegra CS-R8100 Cassette - 12-Speed, 11-34t, Silver","public_title":"Ultegra CS-R8100 Cassette - 12-Speed, 11-34t, Silver","options":["Ultegra CS-R8100 Cassette - 12-Speed, 11-34t, Silver"],"price":14999,"weight":499,"compare_at_price":null,"inventory_management":"shopify","barcode":"192790894164","featured_media":{"alt":null,"id":46394705150139,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/FW0083.jpg?v=1792198135"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":47524495818939,"title":"Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver","option1":"Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver","option2":null,"option3":null,"sku":"ICSR810112130","requires_shipping":true,"taxable":true,"featured_image":{"id":55394961850555,"product_id":8341532082363,"position":4,"created_at":"2026-10-16T20:48:54-04:00","updated_at":"2026-10-16T20:48:55-04:00","alt":null,"width":2048,"height":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/FW0318.jpg?v=1792198135","variant_ids":[47524495818939]},"available":true,"name":"Ultegra CS-R8100 Series 12-Speed Cassette - Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver","public_title":"Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver","options":["Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver"],"price":17199,"weight":386,"compare_at_price":null,"inventory_management":"shopify","barcode":"192790849898","featured_media":{"alt":null,"id":46394705215675,"position":4,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/FW0318.jpg?v=1792198135"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

Ultegra CS-R8100 Series 12-Speed Cassette $171.99

Options: Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver

Checking pickup availability

The uninterrupted shifting experience of the Shimano Ultegra CS-R8100 12-speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ technology is integrated to provide seamless shifts both up and down the gear range. Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation Faster, smoother shifts under maximum pedaling force Compatible with 12-speed and road 11-speed freehub body

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.

Ultegra CS-R8100 Series 12-Speed Cassette

Product Specifications

missisauga store

barrie store

online orders support