Have an ultus on an old schwinn voyager 12 speed will it work?

You need to check a couple of things to find out if this will work. One, the mounting , Will it go onto my bike. Two, the length of the idler cage, Short or Long. Once you determine these I can see no reason it should work.

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lundeng OEM RD-TZ31 6/7 Speed Rear Derailleur Direct Mount for Mountain Bike

Product ID: 245563904

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Details

Brand
lundeng
Colour
Black
Material
Metal Plastic
Mounting Type
Braze-On Mount
Manufacturer
Lundeng

🔩Direct mount for secure fit

⚙️6/7 speed precision shifting

🛠️Durable alloy & plastic build

Description

⚡ Shift into the fast lane with precision and style!

DIRECT MOUNT DESIGN - Bolts straight to your frame for enhanced stability and quick installation—no hanger needed.
LIGHTWEIGHT YET DURABLE - Crafted from high-quality alloy and plastic, balancing strength with minimal weight (~300g).
UNIVERSAL COMPATIBILITY - Fits aluminum alloy frames with 6/7 speed freewheels and Shimano SIS indexing for versatile upgrades.
UPGRADE WITH CONFIDENCE - Latest RD-TZ31 model ensures precise performance, replacing RD-TZ30 with identical fit and improved reliability.
SEAMLESS 6 7 SPEED SHIFTING - Experience smooth, reliable gear changes tailored for mountain and road biking.

The Lundeng OEM RD-TZ31 is a direct mount rear derailleur designed for 6/7 speed mountain and road bikes. Made from durable alloy and plastic, it offers smooth Shimano SIS indexed shifting and fits aluminum alloy frames with direct mount dropouts. Weighing approximately 300g, it’s the latest upgrade from the RD-TZ30, ensuring reliable performance and easy installation for serious cyclists.

Specifications

Batteries Included	No
Brand	lundeng
Colour	Black
Material Type	Metal, Plastic
Number of Items	1
Manufacturer	Lundeng
Country of Origin	USA

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¥14278

Duties & taxes incl.

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TrustScore 4.5 | 7,300+ reviews