How do you put this on? Is it tricky or difficult for a non-technical person?

It's easier, actually, than putting on your rear wheel. Just get the chain in the roller wheel of the device, slide it into the rear chain stay dropout, then lock the quick release lever. If you want more or less tension in the chain you can simply adjust your rear derailleur to lower or higher gear and rotate the crank.

i have one. no need if you have a thru axle. simply use an old adhesive bandage spool and your thru axle. I use mine mostly for transport

That would definitely work too!

Is there a bearing in the contraption, or does the plastic wheel just spin on the axle?

No bearing; although, otherwise well made. The plastic wheel spins on a metal axle. The chain rides on the plastic wheel which is free to move sideways when shifting gears. This makes it easier to clean the derailleur linkages as well as the chain.

Will it work on my 6KU track bike?

Probably. It's designed to work with quick release axles. Your bike as bolt on axles. It will not work with thru axles. It is adjustable for the thickness of the drop out. If you still have the factory bolt on axles , you'd have to undo the bolts with a wrench, remove the rear wheel and then use this hub. To put the wheel back on, you'd do the reverse. If you're not familiar with the terms "quick release axle", "bolt on axle", "bicycle drop out" a quick search of Youtube should help. You could also show take your bike to a local bike shop, show them a pic of this item and ask them if it would work.

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Park Tool DH-1 Dummy Hub Tool, blackone, Black

Product ID: 47984651

Details

Brand
Park Tool
Colour
Black
Item weight
0.13 Grams
Material
Metal
Mounting type
Braze-On Mount

🔧Max chain width 6.8mm for precise cleaning

🚲Fits rear dropouts replacing rear wheel

⚙️Metal build for durability

C$3329

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Description

⚙️ Keep your chain flawless, even when the wheel’s off!

PRECISION FIT - Slides effortlessly into rear dropouts for secure mounting
TRUSTED BY PROS - Park Tool quality with 4.7-star rating from over 2,200 cyclists
COMPACT LIGHTWEIGHT - Only 0.13 grams and 15.2 x 7.6 x 7.6 cm for easy transport
SEAMLESS CHAIN CLEANING - Replaces rear wheel to stabilize chain stay during maintenance
DURABLE METAL CONSTRUCTION - Built to last with high-quality metal for professional use

The Park Tool DH-1 Dummy Hub Tool is a precision-engineered metal device designed to replace your bike’s rear wheel in the dropouts, enabling stable chain cleaning and transport. Compatible with chains up to 6.8mm wide, it prevents chain bounce and ensures smooth maintenance. Compact, lightweight, and highly rated by cycling professionals, it’s an essential tool for any serious bike enthusiast.

Specifications

ASIN	B00NQ9H6JK
Best Sellers Rank	22,440 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 3 in Cycling Hubs
Brand Name	Park Tool
Case Material Type	Metal
Colour	Black
Country Of Origin	USA
Customer Reviews	4.7 4.7 out of 5 stars (2,245)
Global Trade Identification Number	00763477002709
Included Components	power tools
Item Dimensions L x W x H	15.2L x 7.6W x 7.6H centimetres
Item Type Name	Tools
Item Weight	0.13 Grams
Manufacturer	PARK TOOL
Manufacturer Part Number	373-241
Material Type	Metal
Model Number	DH-1
Mount Type	Braze-On Mount
Number of Items	1
Number of Teeth	16
UPC	751738442043 789692467383 763477101105 763477174970 763477002709 744288866179 763477101037 784427670557 783761028802 696735952396 736557323780

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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C$3329

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Nicaragua.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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