Ultegra CS-R8100
SKU: 82651101093

Ultegra CS-R8100

$146.69 $162.99
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No.2 Bestseller on communitymontessori.net >

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Ultegra CS-R8100The uninterrupted shifting experience of the ULTEGRA R8100 12 speed cassette range lets you climb, sprint, and push your limits without stopping to think about your next gear change, thanks to the larger driving cogs maximizing drivetrain range and efficiency. HYPERGLIDE+ Technology Faster, seamless shifts under maximum pedaling load Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation Available in

    The uninterrupted shifting experience of the ULTEGRA R8100 12-speed cassette range lets you climb, sprint, and push your limits without stopping to think about your next gear change, thanks to the larger driving cogs maximizing drivetrain range and efficiency.
  • HYPERGLIDE+ Technology
  • Faster, seamless shifts under maximum pedaling load
  • Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation
  • Available in 11-30 or 11-34
  • Compatible with road 11-speed FREEHUB body
  • Recommended chain: CN-M8100
Attributes
Range 11-30T
Speed 12
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 82651101093

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4.5 ★★★★★
Based on 210 reviews
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Product Reviews
B
Verified Purchase
Burja
Lake Worth, US
★★★★★ 4
Good
Size: 89-96158T 2PCS
Good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
P
Verified Purchase
Patrick TTillery
Port Orchard, US
★★★★★ 1
Bad solenoid
Size: 89-96158T 2PCS
One of the cylinders works, and the other cylinder was a bad one. It did not work.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 12, 2025
J
Verified Purchase
Jim M
Lowell, US
★★★★★ 4
Metric Hardware
Size: 89-96158T 1PC
Works fine. This has metric hardware, which does not match the other two relays on my vintage mercury outboard. This is not a quicksilver part
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 6, 2025
J
Verified Purchase
Jimmy Snow
Charlottesville, US
★★★★★ 5
Boat repair
Size: 89-96158T 2PCS
Excellent for price and quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 1, 2025
C
Verified Purchase
Curtis M
Bozeman, US
★★★★★ 5
Fixed the no boat start
Size: 89-96158T 1PC
Fixed my problem so far working good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 15, 2025

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