Skip to main content
St. Helena Cyclery
Napa Valley Velo

Filter By:

  • Show More Brands

  • Show Fewer Brands
  • Show More Sizes
  • Show Fewer Sizes

Parts & Accessories

Tannus Armour Tire Insert
$39.99 - $54.99
Tannus Armour is the ultimate in tire protection and performance for all levels and styles of riding. Sitting between your tire and inner tube, the Tannus Armour provides 15mm of puncture protection on the top, as well as 2mm of sidewall protection from sharp objects and rocks. Whether you are a city biker, adventure tourer or prefer the off-road, downhill or gravel trails, Tannus Armour gives you increased grip and vibration dampening for a smoother, more comfortable and enjoyable ride. - Patented Aither Technology; Aither is a multi-cell foam compound that forms the structure of the Armour
California Bike Gear Stop Flats 2 Tire Liner
$29.99
- 2-ply rubber shield fits between tire and tube to prevent flats - Pair
Stan's NoTubes Tire Sealant
$4.99 - $28.00
The Product that Started a Tubeless Revolution Inside this simple bottle is a product that changed cycling. Today's tubeless systems rely on the lighter, more reliable, self-sealing performance of Stan's Tire Sealant. Just two ounces of Stan's in a converted standard tire or tubeless tire can repair punctures up to 1/4-inch almost instantly to keep you rolling. Longer-lasting Stan's Tire Sealant is formulated to stay liquid in tires with even thin casings for up to seven months. Arid conditions require more frequent monitoring of sealant levels, but anti-freezing agents in our special formula allow Stan's Tire Sealant to be used in temperatures as cold as -30° F. One quart will convert up to 16 tires. - First choice of riders around the world for tubeless conversion and flat prevention - Seals punctures up to 1/4-inch (6.5mm) quickly - Stays liquid 2-7 months for long-lasting protection - Premium low-viscosity formula resists freezing to work in environments as cold as -30° F (-34° C) - Natural materials, safe for the environment - Can be injected through valve stems with removable cores compatible with tubes and tubular tires
RhinoDillo Tire Liner
$19.49 - $26.99
Prevents thorns and other road debris from puncturing the inner tube and deflating the tire. - Packaged in a process that avoids the difficult to install "pigtails" traditionally associated with liners - Equipped with Soft-Tips that prevent friction flats at the overlapping seam - Sold in pairs
Orange Seal Tubeless Tire Sealant
$6.99 - $24.99
Your tubeless wheels will benefit from the use of Orange Seal Tubeless Tire Sealant. It is proven to seal large punctures up to 1/4-inch and perform under varying temperatures and altitudes. Orange Seal Tubeless Tire Sealant is compatible with most bike tire systems and is eco-friendly.
Slime Tube Sealant
$13.99 - $24.99
- Permanently seals tube punctures up to 1/8 inch - Non toxic formula installs easily through Schrader valves - Complete with valve core remover and filler tube - Slime keg fills 160 tires at 1/2 the price per ounce of the 16 oz size
Hutchinson Fast'air Inflator/Sealant
$19.99
- Inflates a tire and stops leaks in 90 seconds or less - Presta compatible - For use with tubed or tubeless tires - ORM-D: Pressurized liquid restricted from shipping by air
Bontrager Enduro Tubeless Rim Tape
$14.99
- To be used exclusively with Bontrager 29""/700c Tubeless Ready (TLR) wheels - TLR Rim Strips are the light and easy solution to Bontrager Tubeless conversion - Rim Strip replacement is recommended if removed from the wheel
Problem Solvers Presta Valve Extenders - Removable Core
$11.99
The Problem Solvers Presta Valve Extenders add 30 to 70mm of length to your tube or tire valve so that it protrudes far enough out of deep-section rims so that you can attach your pump. These lightweight, durable aluminum extenders are for use with Presta valves that have removable cores. The proper tool for removing the cores and installing the extenders is included.
Slime Premium Tubeless Sealant
$10.99
The next generation of tubeless sealant has arrived! Slime's Premium Tubeless Sealant is everything you could want in a bike tire sealant. Protecting you from tears and slits, Slime's tubeless sealant is designed to stay liquid longer, seal faster, extend the lifespan of your tires and carry you farther. - Protects from tears and slits up to 1/4-inch (6.35mm) - Longer Lasting: Flow Motion technology ensures a long-lasting liquid lifespan, keeping you confident that your sealant is ready to work - CO2 Compatible: CO2 won’t freeze sealant in your tire. Slime’s advanced formulation prevents your sealant from freezing or drying up when setting the bead with CO2 - Wider Coverage: Chemically engineered for optimal dispersion from bead to bead, Slime’s sealant offers wider coverage than ever before - High-Tech: Slime’s fiberweb “gauze effect” dramatically increases the surface area of your hole by overlapping long, stiff fibers with shorter flexible fibers to create both a chemical seal and a physical barrier Slime's new formula is proudly blended and bottled right here in the USA! Available in an array of sizes, from a trailside 8 oz bottle to a shop-use gallon.
Page 1 of 1