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Reviewed in the United States on February 9, 2025
Great gears. They mesh very smoothly in my Injora 360 transmission. A for sure upgrafe in my opinion. I did buy one set and 2 of the gears came out of balance. The gears didn't sit flush of gear shaft. Did not rotate at all, but Injora did send out another set and there perfect
Thom
Reviewed in Belgium on February 28, 2025
4 étoiles, une en moins pour le bruit, car beaucoup plus bruyant que les pignons en plastique.Excellent pour le crawling,plus facile à contrôler en basse vitesse que les pignons de stock et plus de couple. Plus lent en vitesse de pointe. Donc pour le crawling : ok . ]our le trail : préférer un pignons de 16.
Steve Hipsley
Reviewed in the United States on September 3, 2024
Ultra strong and when paired with Injora purple 180 brushed motor, my TRX4m became a climbing machine!
Rick
Reviewed in the United States on August 7, 2024
They fit perfectly in mt trx4m and the machining looks great. I have ran them a few times now, with no issues. I have steel drive shafts and axle shafts, so they really get tested. Well worth the money.
Turtle67
Reviewed in the United States on August 12, 2024
The only downside, and maybe it's my lack of knowledge, but the motor gear is hard to change without damaging the motor. A list of steps and correct tools needed would be very helpful.
Hans
Reviewed in Germany on June 21, 2024
Das Drehmoment ist durch die kürzere Übersetzung deutlich gesteigert gegenüber dem originalen Getriebe. Dadurch kann man aber auch nicht mehr so schnell fahren. Das muss man bedenken. Gepasst hat es aber super, und zum Crawlen ein muss 👍 Da es aus Metall ist, muss man sich aber auch auf mehr Geräuscheentwicklung einstellen! Kugellager, und das Metall Motorritzel sind daher Pflicht!
Chris
Reviewed in France on March 19, 2024
Très mauvais qualité 1 sortie et déjà hs fait un énorme bruit avec un point dure car surment pas le bon jeux entre dent …
Eugene Holland
Reviewed in the United States on December 5, 2024
Second test run and snapped the front drive shaft. They work great. Truck was climbing good and slow and not stopping. Simple installation, buy the bearing set since you will be opening the transmission anyways.
Andrew
Reviewed in Canada on November 6, 2024
Truck runs great and the crawler gears make a world of difference in the rocks. Fairly easy install, take your time and make sure all the bushings or bearings seat well.
Nenoorb
Reviewed in Italy on January 2, 2024
Perfetti, lavorati benissimo. Ottimi.
Customer
Reviewed in the United States on September 27, 2023
When I first got the trx4m I noticed whenever I would bind the tires it wouldn't have the torque to pull it out but these gears solve that problem. They give you that low end torque a crawler needs to go over everything especially in a bind. If you keep the stock motor it goes really really slow and it doesn't have a high speed when you need it but if you combine the 180-48 turn motor it is immaculate. It will give you everything you need. A little bit of caution though with how much torque it gives I would think it can break axles now and possibly other things you're switching from plastic gears to metal gears so still be careful on that throttle in a bind. Product is as displayed
D91ICE
Reviewed in the United States on April 26, 2023
TL;DR Only one run, so far so good. Running brushless Furitek.Update March 2025. Almost 2 years on these gears and still working great. Still highly recommend this if you want to rock crawl. Too slow for trail or general purpose driving, but a must have if you’re looking for more torque and slow speed crawling. I’ve had no issues out of these gears (or anything on my 4M for that matter)Update: April 2024, 1 year later still runs like the day I installed. I don’t drive it every day but at least a couple times per week. Would buy again.Original review:Installed in my Bronco running bearing kit and the Furitek brushless motor/esc. Gears dropped right in no fitment issues. There has been a clicking ever since installing the new motor but the plastic crawler gears from Traxxas also made a clicking. So I just run it. Worth noting though. These gears appear to be nicely machined. If you’re into rock crawling with your TRX4m, I’d suggest this as your first upgrade along with bearings second. Those two upgrades even on the stock motor and electronics make it a whole new truck. The torque of the stock motor is actually pretty good with the crawl gears. I bought these injora gears because I thought that I had stripped the plastic ones causing them to click when driving, turns out these click too. The quality of injora parts is excellent. I’m also running their brass differential covers front and rear. So far these are a 5 star all day. If anything happens, I’ll update my review.
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