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Solid Wheel Retro-fit Kit (2 Pack)

$29.95

25mm25mm
35mm35mm

Sleeping Bag Temperature Ratings Explained

The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. Unisex sleeping bags list the Lower Limit which is the lowest temperature rating that an average male sleeper would be comfortable in. Our women’s sleeping bags list the Comfort Limit, which is the lowest temperature rating at which an average female sleeper should be comfortable. The comfort and lower limit temperature ratings are listed in the features table on the product page.

For example, a unisex sleeping bag that shows a Lower limit of 23ºF means a man should be comfortable down to air temperatures of 23ºF. The same bag will also have a Comfort limit, in the realm of 32°F, so a woman would be comfortable down to an air temperature of 32ºF. Men and women should always sleep in a layer of long underwear and use a sleeping mat with an R-Value appropriate for expected ground temperatures – without this, the sleeping bag itself is unlikely to keep the sleeper warm enough.


Here’s a basic categorization of appropriate use, based on rated temperatures:
Summer:   >+35ºF / +3°C
3-Season:   +10 to +35ºF / -15° to 0°C
Winter:   <10ºF / -15°C


A huge variety of factors can impact sleeping bag warmth - the above temperatures are merely guidelines, not guarantees. It’s important to think of a sleeping bag as one element in a sleep system which also includes an appropriately insulating sleeping pad and a liner. For instance - if you plan on sleeping in nighttime air temperatures of 27ºF / -3°C, choose a bag with a gender-appropriate rating of 23°F / -5°C nights, plus a sleeping mat with an R-Value of 2.5 to 3, and consider a Reactor thermal liner. If you have any questions about which temperature sleeping bag / R-Value sleeping mat you should select, or how to improve your warmth in a sleep system, reach out to us via our contact page any time.

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Description

Upgrade the existing wheels on your Sea to Summit boat cart using the Solid Wheel Retro-fit Kit. These molded wheels feature a thermoplastic rubber outer surface, so they roll smoothly and quietly. They are designed to withstand the most rugged terrain without the possibility of punctures. Kit includes 2 wheels with pre-installed hub sleeves.

Features

  • To upgrade Sea to Summit Small, Medium and Large boat carts purchase the 25mm hub kit
  • To upgrade Sea to Summit Sit on Top Kayak Cart purchase the 35mm hub kit

Can the Retro-Fit Wheels...?

  • Fit in a sea kayak hatch? The wheels measure 9.85 inches / 25cm in diameter. They should just fit into a 10” hatch.

  • Be used on soft sand? Possibly not. On very fine-grain sand the rim of the wheel will sink and the spokes will become clogged with sand.

  • Be used for kayak carts made by other manufacturers? Probably not. To determine if these wheels will fit your cart, measure the external diameter of the axle: “25mm” or “35mm” refers to the interior diameter of the wheel hub.