MK4 Wheels

What are Asym and BST-A rims?

Asym or Asymmetric rims are rims designed with an offset to one side to allow for spoke bracing angles that create a more balanced tension and stronger wheel. Stan's BST-A or BST-Asymmetric rim design incorporates our original patented Bead Socket Te

What makes the MK4 line different?

The MK4 line represents our first asymmetrically designed tubeless rim, featuring a shallow drop-channel with a smooth transition to a wide, flat bead seat, with a low sidewall allowing for easy tubeless tire installation and inflation. The low sidew

Which direction do I lace my Stan’s BST-A rims?

Front: Offset goes to the disc rotor side, or rider’s left.Rear: Offset goes to the drive side. Or rider’s right.In doubt? Stan’s strongly recommends all wheels be assembled by a professional wheel builder, according to the specifications we offer in

What are the options for MK4 wheels?

All stock MK4 wheels built on the M-pulse hub line are 32 holes. We offer the MK4/M-pulse wheels in 6-bolt or Centerlock disc brake rotor configurations with all common freehub options: HG, XD/XDR, and Microspline.

Will the SRAM XDR freehub work with my XD level group?

To run the XD cog set on the XDR freehub simply leave the included silver freehub spacer in place while installing the XD cassette. To run an XDR level cog set simply remove that spacer. Tech Tip: Grease those freehub threads and cassette threads bef

What valve does the MK4 rim use?

The MK4 rim line works best with the Stan’s 35MM Universal Valves. The 44MM length will also work well if needed. We offer these valve lengths and many more in Brass or lightweight Alloy with many color options available.

What is the maximum air pressure that can be run in the MK4 rim line?

In general Tubeless Ready Tires should be run at lower than a traditional tube and tire setups to get the most benefits out of this technology. When setting up your tires and wheels first review the Maximum Tire Pressure ratings for both the tire and

Can I use a tube with the MK4 rims and if so, what is the maximum tire pressure that can be used?

Yes. Please consult the tire manufacturers listed maximum tire pressure ratings for the tire and use that as your guideline for mounting a tire and tube setup on Stan’s rims. Tech Tip: We highly recommend not using a tire lever while mounting a tire/

What is the weight limit on the MK4 rims?

While we do not set definitive weight limits per rim model as many factors, including but not limited to assembly components and techniques, influence this calculation once assembled into a complete wheel we do offer the following weight limit guidel

Do you offer the MK4 rims in any other color than black?

The MK4 line of rims is only offered in Black. We do however offer a wide selection of decals to match your bike paint. Further custom options can be ordered through our partners at Slik Graphics.

Do you offer colored decals for the MK4 rims?

While Stan’s only offers rims in black we do offer a wide range of colored decals to customize the look of your Stan’s MK4 27.5in or 29in rims and wheels. If you are looking for a 26in decal or that special color we do not currently offer please reac