Includes a chain sprocket size of your choice when available.  Leave a note to seller at check out.  We only have a few 36T concave sprockets left in stock that are saved for HD Axle wheel sales.   36T 6-hole HD Axle concave sprockets are no longer sold independently!

This is a HD AXLE 26" WHEEL made for 110mm to 135mm mm rear frame dropout single speed bikes.   

Made exclusively for 2-stroke pedal start engines.   

NOTE:  We have installed the flanged left hand threaded sprocket hub on permanently with Red 271 Permatex permanent thread lock and locked down the set screws for a permanent hub installation.  Therefore, it cannot unscrew when coasting down a long steep hill when experiencing engine back pressure pushing the chain backwards. 

We include the 6-hole sprocket of choice. We will install it with 10.9 gr M6 bolts, but will not tighten the 6 bolts nor apply any Loctite thread lock as we do not know if your frame will require the sprocket teeth to be dished outward or inward.  Therefore, it will be your responsibility to install the sprocket correctly with 242 Blue Permatex thread lock found at your local hardware store. 

 You must tell us in a message to seller at Check Out which sprocket you want,

Choose one of these. 36T, 44T, 48T, 50T or 56T.   If we are out of stock on any sprocket we will call you for an alternate choice.  Note: 36T in very short supply. 

If using a disc brake, your rotor must be larger or smaller in diameter then the chain sprocket to gain approx. 21mm caliper clearance.   

Heads up:  Our HD AXLE 6-hole sprockets are not the same as those sprockets made for disc brake hole patterns. 

WHEELS are shipped via UPS so cannot be delivered to a USPS PO Box #. 

An all-steel HD AXLE solid hub using M6 bolts means it is much stronger versus those made of cast aluminum and use M5 screws in a disc brake pattern.    ( see last Picture )

See 25 attached pictures and read all the descriptions here in to gain full HD AXLE understanding.    Lack of understanding is not a reason to return. 

This 26" #2 HD AXLE wheel is made with 12 ga. spoke alignment for 110mm to 135mm wide frame dropouts.   

This Single Speed wheel is Not suitable for a Multi Speed bike frame. ( See our multi speed wheel add.)

This wheel can be used with all 2 stroke mid-frame engines as well as with 4-stroke engines as long as the 4-stroke engine's transmission has a freewheel such as is found in our 4G and 5G T belt drive transmissions. 

NOTE:  This wheel is the same as the multi-speed wheel except the rim is spaced more inward to be in the center of a 110mm to 135mm drop out.  

HD Axle Wheels can work with Disc Brakes and / or can also be used with a Caliper Vee-Brakes due to having a CNC cut rim flat surface.   2 ways! 

#2 HD Axle wheels come with a permanently installed steel 6 Hole CCW 36-1 screw flanged Sprocket hub and 1/4" tk. spacer lock ring. 

NOTE:  #1 HD axle wheels with a Freewheel Sprocket Flanged Hub are found in the 4 cycle engine section.   DO NOT ORDER A #1 HD AXLE WHEEL FOR A 2 STROKE ENGINE APPLICATION BECAUSE A FREEWHEEL HUB will not allow engine pedal starting. 

NOTE:  The Sprocket Flanged Hub has left hand threads, so the sprocket hub does not unscrew when under engine pulling power.  For added security we have locked down the Sprocket hub with RED 271 PERMATEX PERMANENT THREAD LOCK. As we say, she's on there to stay. 

Failure to follow good engineering installation procedure can damage the HD Axle if done incorrectly.  

 HEADS UP Guidance: The motorized bike builder is the prime contractor and accepts all liability.  

• NOT ALL BIKE FRAMES HAVE CHAIN STAYS SUITABLE FOR MOTORIZING.  The best frames have a Wide U-shaped chain stay frame.   

• 2-stroke pedal start engines require a permanently affixed Sprocket Flanged Hub. 

• The "disc brake hub" must be used in all cases as it serves as a jam nut for the Sprocket Hub.

• The drive sprocket is installed on the outboard side of the sprocket hub flange so it can be removed in the future. 

• Failure to install is not warrantable. 

• Good luck in your build and may God speed you safely.