Alpha 340 Rims

Alpha 340 Rims

Photo Credit: Maria Quiroga - Riders: Stan's Axa Team
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priced from $84.00
In Stock
  • Can be run with tubes or tubeless.

  • For road and cyclocross

  • Bead Socket Technology (BSTR) for superior tubeless performance

  • Lightweight design for instant acceleration

  • Wide, low-profile rim design for better cornering and faster rolling

  • Compatible with road tubeless-specific clinchers and conventional clinchers when used with tubes

From criteriums to bikepacking, our classic Alpha rims make every ride better and faster. Lightweight, durable, tubeless-compatible rims accelerate with an unmatched quickness and feature Bead Socket Technology, which means you corner better and experience less rolling resistance. When used with tubeless road tires and NoTubes Sealant, you enjoy near puncture-proof riding and racing for greater peace of mind.

Rim Internal Width: 17.0mm            ETRTO: 622x17
Rim External Width: 20.0mm   ISO: 20.0
Rim Depth: 22.6mm   Tape: 21mm
Hole Count: 18-hole, 24-hole, 28-hole or 32-hole   Valve: Presta
Rim Color: Black   Max Spoke Tension: 125kgf (1225N)
Material: 6061 Aluminum Alloy   Max Pressure with 23mm Tire: 116psi
Brakes: Rim   Max Pressure with 32mm Tire: 45psi
ERD: 592mm   Rim Weight: 385g
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To submit a warranty claim outside the U.S., please contact your point of purchase or the authorized distributor within your country for the best service and support.

**Purchases made through eBay or similar resale sites are not supported under our warranty policy.**

Aluminum Rim Warranty and Crash Replacement Policy

Two Year Aluminum Rim Warranty

All Stan’s NoTubes Aluminum rims are covered under a 2 year warranty against manufacturing defects from the original purchase date. Warranty does not cover abuse, misuse, consequential damages, normal wear and tear, and improper installation. Warranties only apply to the original owner. If a product is found defective, the customer will receive, at the discretion of Stan’s NoTubes, free repair or replacement.

One Year Aluminum Rim Crash Replacement

Should you have the unfortunate experience of crashing and damaging your Stan’s NoTubes aluminum rims, we want nothing more than to help you get back on the bike as quickly as possible.  The Crash Replacement Policy covers the rims for a period of 1 year from the original purchase date against damage caused during normal operation of the bicycle, including racing.  Crash Replacement Pricing includes new rim, spokes, nipples, tape, and costs associated to build labor. 

Warranty and Crash Replacement Conditions

  1. Warranty and crash replacement are valid only for the original owner and are not transferrable.

  2. Warranty does not cover the following:
    • Damage sustained during shipment.
    • Products on which serial numbers, production lot codes/date codes or other identifying marks have been removed.
    • Normal wear and tear, misuse, incorrect installation or improper maintenance, use of incompatible parts or components, accident or crash damage, negligence, modifications not recommended or approved by Stan’s NoTubes.
    • Shipping costs to Stan’s NoTubes or local distributor.
    • Instances determined to be cosmetic only.
    • Any representation or warranty expressed or implied by a third party beyond the provisions of this stated policy.


Stan’s Tubeless System provides you with the information and items you need to seal most tires and rims tubeless. When attempting this process, ride with caution the first initial rides to observe the reaction of your tires and rims. Due to the variety of tire and rim combinations, some may work much better than others. During your first few rides check your tire for leaking and correct air pressure. If your pressure drops too low there is a risk of the tire dismounting itself. The system allows the use of standard, tube-type tires, to be used in a tubeless manner. It should be noted that doing so exceeds the tire manufacturer’s original design intent and may void the tires warranty. Also, some tube and tubeless tires were not designed to be used with sealant and doing so may void the tire's warranty. Stan’s is not responsible for any damage to the tires and/or any injury or liability resulting from the use of a tire beyond the original design intent.

Our Technology

  • BST-R


    BST-R rims offer maximum versatility with the widest range of tires and pressures. Compatible with 25mm to 32mm tires at pressures up to 115psi both with and without tubes, BST-R rims are also compatible with wider, higher-volume tubeless tires at pressures below 45psi.

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