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Part# 06-03600
MFR Model# 6X2.125BALL
DescriptionSizeWeight (lbs)Part Number
Homebuilders Replacement Tailwheel6 x 2.125 x 5/8 Balloon/Solid2.7506-03600


Replacement wheels with tires and bearings for the Homebuilder's tailwheels.

Natural Rubber
R&K only utilizes the highest quality natural rubber which has been formulated in strict accordance to our specifications. High grade natural rubber is durable, versatile, and has excellent physical properties such as cut-and-tear and abrasion resistance.

Balloon Rubber
Available in both grey and black, balloon rubber is the most resilient and shock absorbing tread material available.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


Works great, Just like the original. I got about 350 landings out of it which I feel is pretty good. The old one is still serviceable but just looks worn out. The bearing grease zerk doesnt work on either of them is my only complain.

Montgomery M Verified Purchase


October 11, 2023

Part is good, but it was marked as 06-03600 but what was delivered was 06-02988 (wrong size axle)

Montgomery M Verified Purchase


September 26, 2023

product is of great quality

A.meneghelli S Verified Purchase


March 30, 2023

As good as expected

February 5, 2021

I was reluctant to purchase this wheel but the quality seems much better than reviews I have read. Bearings fit well, bolt hole is concentric with the wheel etc. It is well made and performing very well so far.

Randy E
December 14, 2019

I use the R&K 4x1.5 x 5/8 on my Midget Mustang which lands kinda fast.and so far had 3 1/2 years good service (about 350 hours) from the my initial cheapie tool-cart wheel...BUT....I first packed the inside of the wheel and bearings (yes, they are open to accept grease on the inside portion) with high pressure rating 50% moly grease. If you do that right away they just might last forever, or until the rubber goes. However if you want to make it a really nicely rolling unit, press out the old clunker bearings and press in a pair of Enduro 202FFLB truly-sealed bearings. Theyre about $17 depending on where you shop. I did that to my just-in-case-spare wheel, but the first is still going strong.

September 20, 2021

Use these on a PANZL S330 Aerobatic Monoplane. Tailwheel lasts around 75 landings before showing appreciable wear. Around 150 landings its either worn off half the rubber or it has splits in the sidewalls. For the cost, I carry one as a spare when I travel and keep one on the shelf. The Panzl doesnt carry the tail-weight of the Pitts but does have similar touchdown speeds. For the money, they are just fine.

Aaron M
August 14, 2019

The 4 x 1-1/2 wheel is actually 1-3/4 wide at the hub with bearing. Had to narrow the wheel (belt sander) to fit my 1-1/2 tailwheel yoke.

November 21, 2015

Be careful, some of these have 1 RS bearings (seal on one side only) and some have 2 RS (fully sealed). The 1 RS bearings are not packed in grease and are not indicated other than markings on the seal. These should be manually packed. The 2 RS cannot be packed and there is no need to.

Gary G
July 9, 2022

These wheels are ‘way’ out of round. I bought 2 and they both have the same identical issue. When you put them on an axle and spin the wheel, it looks like a record on a turntable that’s missing the centering pin. They look good and feel good, and are very heavy duty…just not designed for any speeds over 8 miles an hour. The factory says they are designed for heavy duty dolly’s and carts moving slowly across a shop or warehouse floor. I wouldn’t recommend them for any type of aircraft use. Unfortunately, I will be returning these ASAP.

Jim B
May 29, 2021


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What are the weights of these replacement tailwheels for homebuilders?

We have changed the formatting of the page. We have the added the weights of each item to the product ordering grid. Please review them here.

Q: What are the weights of these wheels?

We have changed the formatting of the page. We have the added the weights of each item to the product ordering grid. Please review them on the web page.

Q: What is the OD of tailwheel tire # 06-03600?

Part number 06-03600 has an OD of approximately 6 inches.

Q: Do these wheels come as an assembly (i.e. complete with bearings) or do the bearings have to ordered separately and assembled?

These wheels come with the bearings.

Q: Are the bearings sealed, so no external lube is required?

Correct, these bearings are sealed and already inserted ao there is no lubricant required.

Q: What type of material is the tire ? durameter rating ?

This is a rubber tire, 65-70A duro.

Q: What is the inside diameter of the bearings (where the axle goes through)?

The inside diameter of t he 06-03500 bearing is .625".

Q: Is the 6 x 2.125 x 1/2 Balloon/Solid fit with the 6in double fork?

See part # 06-03600.

Q: What is the bearing dimensions/part number for the bearings to fit 5/8" shaft? I need to replace mine

The bearings are our Part# 06-00060.

Q: Do these come pre-lubed and ready to go? How often should they be re-greased and what grease is recommended?

Per Vendor: "You can get the wheels pre-greased with a 1/2", 5/8 or 3/4 sealed ball bearing. Greasing depends on the usage."

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