Are these version 2? Same as chrome ones.

Yes they the same, I have both sets so, I can confirm that they're the same

Whould these fit fms fcx or furitek caymen? Thanks

They are for 1:18 scale crawlers, but they're only a few bucks, so try em out. You could probably cross reference sizes though to find out for sure. I know the hole to attach the shaft is a d-shaped hole.

Any idea if these will work with the K10 High Trail?

I use them on my K10 Monster Truck build with 59mm INJORA shocks. It's at their limit, but functional. I think INJORA just came out with a stainless steel version, specifically for the K10, on their website.

Injora 22g Drive Shaft Steel Black Front Rear Center Shaft

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Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Upgrade Your RC Game with Precision & Power!

LIGHTWEIGHT YET TOUGH - At just 22g, these drive shafts optimize your crawler’s agility without compromising strength.
AUTHENTIC SCALE DETAILING - Scale joint and spline diameters mimic real vehicle parts, elevating your TRX4M Defender Bronco’s realism.
BUILT TO LAST BUILT TO PERFORM - Crafted from hardened stainless steel to resist rust and wear, ensuring your RC crawler stays race-ready.
PRECISION FIT FOR PEAK PERFORMANCE - Innovative D-shaped and rounded rectangle holes guarantee a tighter, more reliable connection to transmission and axles.
EASY UPGRADE FOR SERIOUS ENTHUSIASTS - Designed specifically for 1/18 TRX4M Defender Bronco, making installation straightforward and hassle-free.

The INJORA 22g Drive Shaft set features hardened stainless steel construction with a rust-resistant finish, designed exclusively for the 1/18 TRX4M Defender Bronco. Its D-shaped and rounded rectangle hole design ensures a secure fit to transmission and axles, while scale-accurate joint and spline diameters enhance realism. Lightweight yet durable, these shafts deliver long-lasting performance and a seamless upgrade experience for serious RC enthusiasts.

Specifications

ASIN	B0C7GQ6MFL
Age Range Description	Kid
Battery Types	No batteries required
Brand	INJORA
Character	Bronco
Colour	Black
Customer Reviews	4.7 out of 5 stars 500 Reviews
Educational Objective	Develop manual skills and understanding of mechanical components
Indoor Outdoor Usage	Outdoor
Is Assembly Required	Yes
Item Dimensions	25 x 25 x 51 Millimeters
Item Weight	0.02 Kilograms
Manufacturer	INJORA
Manufacturer Part Number	4M-50BK
Material	Steel
Maximum Recommended age	144
Minimum Recommended age	14.00
Model Number	4M-50BK
Number of Players	1
Operation Mode	Manual
Power Source	Unpowered
Size	Petit
Theme	Vehicle
Unit Count	6.0 Count

Reviews

J**Y

Solid upgrade from Injora

This is a great upgrade for the stock TRX4M - plastic to metal conversion. It's a no brainer. They're metal so they're a ton stronger than the stock plastic ones. They look way cooler than the stock ones as well. And they're heavier so it helps keep the CoG low. They're also from Injora - one of the most reputable brands in the business. Easy enough to assemble and came with all necessary hardware - a couple of set screws. Make sure when you install them, you install them "in-phase". Google that and you'll see what I mean. Installing this way will help reduce torque twist.

6.03.2026

D**O

Top but with a quirck

Can't argue with the build quality! Definitely a must, especially if upgrading for a brusheless motor, as the stock transmission axles will break. However, be aware that these will introduce some wheel slack.

19.09.2025

L**L

Injora

Excellent parfait 👍

9.12.2024

B**E

good quality

Injora is great for the price! Trx4m bronco

24.06.2024

G**.

Another great product from injora.

16.07.2025

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