SKU: 68678977872

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert Only

Sale price$33.26 Regular price$36.95
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Description

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert OnlyOPTIS (Odyssey Pneumatic Tire Insert System) is a lightweight, highly tunable, high efficiency, tubeless tire insert. Tire assemblies are one of the most important performance factors for any bike. They provide all the grip to the ground, they serve as a critical first element of the bikes suspension and they provide essential support to the cornering forces that the bike encounters. OPTIS separates the function of the bikes grip from its suspension

OPTIS (Odyssey Pneumatic Tire Insert System) is a lightweight, highly tunable, high-efficiency, tubeless tire insert. Tire assemblies are one of the most important performance factors for any bike. They provide all the grip to the ground, they serve as a critical first element of the bike’s suspension and they provide essential support to the cornering forces that the bike encounters. OPTIS separates the function of the bikeʼs grip from its suspension and stability by turning the tire into a two-chamber system. This allows for lower tire pressures while the insert is inflated to a higher pressure than the tire, keeping the tire supported while allowing the main volume to be at a lower pressure that provides optimum grip.
  • Riders can separately tune the tire's grip and internal support through a dual-valve design, allowing for lower tire pressures and ride characteristics that would not be possible with a traditional tubeless or foam insert set-up
  • Instead of forming to the internal tire casing like an ordinary inner tube, OPTIS cinches down against the tire bead and hugs the rim when inflated. This creates a bead lock that prevents burping, protects the rim from impacts and offers a limited amount of run-flat protection when the tire is damaged or punctured
  • OPTIS reduces rolling resistance by facilitating the use of lower pressures and lighter tires. Rolling efficiency is greatly improved on rough surfaces without the hysteresis losses often associated with foam inserts
  • OPTIS is lightweight, adding less than 90g per wheel to an ordinary tubeless set-up and provides greater protection than traditional inserts that are much heavier
  • Valve is constructed from Aluminum, Insert is made from Nylon and TPU (Thermoplastic Polyurethane)
  • Designed to fit rims with 28 – 40mm internal width, at a maximum inflation of 50psi

Product Specifics

  • Defined Color: Yellow



Today's Stock Status

9 Available to ship in 2-4 Business Days





UPC: 630950941339
EAN: Not available
Manufacturer Part Number: ODT-502-271
TR00174
195755-Q0-L


Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
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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]
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SKU: 68678977872

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4.3 ★★★★★
Based on 18 reviews
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george mitchell
Birmingham, US
★★★★★ 5
Fits 1988 Sea Ray V-135 2 stroke (Mercury)
For those of you with the 135 hp mercury that was branded as the "Sea Ray 135" and paint matched to the boat (i.e. Seville's and some others) this is the 147 degree thermostat for that motor. My Seville is an '88 and It's difficult to cross reference the serial numbers on those motors when searching for parts. Only buy Quicksilver parts for these motors. Happy to find them on Amazon because Boats.net as an example, is not clear on what you're getting.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2024
C
Verified Purchase
Carlton Earley
Battle Creek, US
★★★★★ 5
fixed issue
stopped the overheat issue on my outboard!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 6, 2025
B
Verified Purchase
Brett W.
Lexington, US
★★★★★ 5
Carries all the current I want. Super flexible, great price
Size: 8 AWG 3 ft per color, Color: Red and Black
Very nice high quality. Somebody tried to tell me this was aluminum strands. But after test sanding an exposed end, I could see copper color. I believe the confusion is they are individually tinned strands? 🤷 Just sayin...
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Reviewed in the United States on June 28, 2025
N
Verified Purchase
Noce
Chelsea, US
★★★★★ 5
good quality.
Size: 8 AWG 3 ft per color, Color: Red and Black
The wire worked very well for my project.
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Reviewed in the United States on April 22, 2024
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Verified Purchase
Vlad Gruetz (YT)
Boise, US
★★★★★ 5
Well worth the money
Size: 8 AWG 3 ft per color, Color: Red and Black, Size: 8 AWG 3 ft per color, Color: Red and Black
Much easier to use over trying to put the hard case extension wires in my solar controllers.. very well made. Now I can feel confident I got the wires in properly.
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Reviewed in the United States on March 18, 2019

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