Java Neo Easy Wheel Extension Bar

The Java Neo Easy Wheel Extension Bar is a JAVA original rear-fork accessory that moves the easy wheels further out, so a folded Java Neo stands more steadily and rolls more smoothly. It also raises the frame, which stops the rear shock-absorbing block dragging on the ground once a rear rack is fitted. Four versions are available by wheel size (16" 349 / 20" 406) and frame material (aluminium / carbon).

At a glance

• Category: Folding bike easy wheel extension bar (rear fork mount)
• Brand: JAVA original accessory, designed for the Java Neo with precisely matched mounting holes
• Material: High-strength aluminium alloy, CNC machined
• Versions: 16" (349) and 20" (406), each for aluminium frames or carbon frames
• In the box: Installation tool included
• Best for: Java Neo owners who have fitted a rear rack and find the rear block touching the ground when folded, or who want steadier rolling when folded

What problem does it solve?

After a rear rack is installed on a Java Neo, the rear shock-absorbing block can drag on the ground when the bike is folded. The extension bar raises the frame to stop this, and moves the easy wheels outwards so the folded bike stands steadily. With the wheels underneath, it pushes like a suitcase, making MTR stations and lifts effortless.

JAVA original design with matched mounting holes

Designed specifically for the JAVA NEO folding bike, the hole positions match precisely and the bar bolts on at the rear-fork easy wheel position. An installation tool is included, so fitting is straightforward.

Steadier standing, easier rolling

With the easy wheels moved outwards, the folded Java Neo is more stable both standing and rolling, and the wheels underneath let you push it along like a suitcase.

Raises the frame after fitting a rack

Once a rear rack is fitted, the rear shock-absorbing block sits close to the ground when folded. The extension bar raises the frame to stop the block dragging when you fold and roll the bike.

High-strength aluminium, CNC machined

The bar is made from high-strength aluminium alloy with CNC precision machining for a sturdy, durable part.

Which version do I need?

The bar comes in 349 (16-inch) and 406 (20-inch) sizes, each made for either aluminium frames or carbon frames. Choose by your bike's wheel size and frame material. Java Neo models currently on our shop:

Extension bar option	Matching Java Neo models (our shop)
16" 349 (aluminium frame)	Java NEO 9S 16 inch 349 9 Speeds Folding Bike, Java NEO 9S 16 inch 349 9 Speeds Folding Bike (Carbon Fork version), Java NEO 12s 16 inch 349 Electric Shift 12 Speed Folding Bike, Java Neo 16 inch Folding Bike - Chrome (Limited Edition)
20" 406 (aluminium frame)	Java NEO 20 inch 9s Folding Bike, Java NEO 20 inch 9 Speed Carbon Fork Folding Bike, Java NEO 20 inch Electric Shift 12 Speed Folding Bike, Java Neo 20 inch Folding Bike - Chrome (Limited Edition)
16" 349 (carbon frame)	Java NEO J Air Carbon EX12 16 inch Folding Bike
20" 406 (carbon frame)	Java NEO Carbon 20 inch 12 Speed Folding Bike

Note that the "Carbon Fork" models still have an aluminium frame, so they take the aluminium-frame bar. Only the full-carbon J Air frames take the carbon-frame bar.

How is it different from the Alex Bike extension bar?

This bar is a JAVA original part in four versions by wheel size and frame material. The Alex Bike Easy Wheel Extension Bar comes in a single 105.6 mm size in black, titanium or red, is listed for both the Java Neo and Brompton P Line, and does not include easy wheels.

Jollymap recommends

If you also plan to fit a rear rack, look at the Mr TiParts Java Neo Rear Rack or the ODI rear rack with easy wheels before choosing your bar. Not sure whether your bike has an aluminium or carbon frame, or 349 or 406 wheels? Chat with us or message our Facebook page before ordering, with photos of the side of the frame and the rear fork.

Specifications

Brand	JAVA (original accessory)
Category	Rear-fork easy wheel extension bar
Material	High-strength aluminium alloy, CNC machined
Colour	Black
Versions	16" 349 / 20" 406, each for aluminium frames or carbon frames
Compatible bikes	Java Neo folding bikes
Mounting	Bolts on at the rear-fork easy wheel position
In the box	Extension bar, installation tool (mounting bolts also shown in product photos)

Specification source: Jollymap product information and product photos; JAVA's official website has no page for this accessory.

FAQ

What does an easy wheel extension bar do?

It moves the easy wheels further out and raises the frame. A folded Java Neo stands and rolls more steadily, and with a rear rack fitted the rear shock-absorbing block no longer drags on the ground.

Does it fit a carbon-frame Java Neo?

Yes, choose the carbon-frame version. The bar is made in aluminium-frame and carbon-frame versions: full-carbon J Air models take the carbon-frame version, while "Carbon Fork" models still have an aluminium frame and take the aluminium-frame version.

Which size for a 16-inch or 20-inch Java Neo?

Choose by wheel size: 349 for a 16-inch Java Neo, 406 for a 20-inch (406 wheel) Java Neo. Please match your bike's wheel size to avoid fitting errors.

Are easy wheels included?

The product information does not list easy wheels; the package in the product photos shows the bar, mounting bolts and a hex key only. If you need wheels to go with it, please contact us before ordering.

What tools do I need to install it?

An installation tool is included. The bar is designed for the Java Neo with precisely matched holes and bolts onto the rear fork. If you have questions about fitting, contact us first.

Does it fit a 14-inch or 451-wheel Java Neo?

The bar is only made in 349 (16-inch) and 406 (20-inch) sizes, with no 14-inch or 451 option. Owners of a 14-inch Java Neo or the Java NEO Carbon 20 inch 451 105 Di2 Folding Road Bike should contact us before ordering.

Specifications and components follow the manufacturer's latest release and may change without notice. If in doubt, please contact us to confirm before ordering.

Last updated: October 2026