This Surly tube is made of butyl rubber with a presta valve and will easily float a small dog

Tires:  27

The Minion DHF is available in trail

When it comes to comfort and protection

Foundry Chilkoot 2016

ENDURO ABEC-5 Cartridge Bearing - MR 15307 - 15 x 30 x 7 Orange Seal This Surly tube is madeBearings meeting the ABEC 5 standard. High precision Grade 10 balls are within 5 1,000,000 round. High carbon chromium alloy races Grade 10 balls Protective gray LLU seal facing outward, towards the elements, to reduce contamination from water or dirt Lighter contact (less seal drag) black LLB seals facing inward keep the 90% fill Mobil XHP 222 high pressure grease where it belongs