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  Item found in the following categories;
> Helicopters & Parts > Replacement Parts > HK450 Parts
> Helicopters & Parts > Replacement Parts > HK and Align Option Parts


High-Quality FBL Flybarless Head for T-Rex and HK450 heli.

High-Quality FBL Flybarless Head for T-Rex and HK450 heli.

Flybarless upgrade for 450 T-rex and HK style helicopters.
Includes thrust and standard bearings.
Well machined with tight tolerances.

Direct bolt on for the following;
Align T-rex 450
We do not suggest using this head with eBay purchased 450 clones unless you upgrade the clone's ball-ends to the correct tolerance balls. Otherwise you will experience head slop.

This kit works perfectly with HK-450 and Align 450 helicopters.

Why so cheap?
This is an in-house designed product & you are getting the factory direct price!


Shipped from:
International Warehouse



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 Customer rated
Total of 49 discussions.
jerelz  2 points - 9/2/2016
Do you suppose taking a picture of black anodized parts with a BLACK background is a good idea? How a picture of the head that I can see? Thank you!!!
Andrey  1 points - 7/25/2015
hello. where i can find spare grips for that kit? i find only hub and anti-rotation holders.
Radoslaw  1 points - 2/27/2015
There are no dumpers in this head set (so I must buy it separately), but spindle (feathering shaf) is included but not visible on the photo above.
El Luz  87 points - 1/26/2015
I tried to assemble this head but failed without any manual... I've build some kit's so far... I want to build a scale FBL Project. maybe some parts are missing? The description reads: High-Quality FBL Flybarless Head for T-Rex and HK450 heli-Direct bolt on for the following* Align T-rex 450... thank you for your support. ****
iansydbr  93 points - 4/29/2014
I was wondering if somebody has come across a problem I found during assembly of the flybarless head?The balls on the swashplate have been replaced with the ones supplied in the kit.However I have found if I operate the radio and activate the swash in roll and pitch the arms from the blades drop off the balls on the swashplate. My question is which way do the ball links connect onto the swashplate balls.One side of the links seem to have a small champher and the other side doesn't.So which way to connect?
 iansydbr 93 points
Only way I could cure the problem was to refit the original balls and rod ends on the swashplate .
 2Doggs 404 points
Over a year too late, but it might help someone! The linkage balls with this head are 4.75mm, compared with 4.70mm for HK ones. Therefore you have to fit at least two of the supplied 4.75mm balls to the inner swash, to be used with the swash driver arms. If you then swap out the bottom plastic links from the supplied swash to blade grip link assemblies for regular HK or Align plastic links, you will have two spare plastic links, so you will be able to replace the top links if they wear out or get damaged. You will also have two spare 4.75mm dia linkage balls. You can use one on the tail slider of an HK450, to take out some of the slop in the linkage. When you press the plastic links onto the balls, the number molded onto the link should face outward. For some odd reason, one of the swash driver arms has "1" molded on the outside and the other one has "2" molded on the inner face. The two arms are otherwise identical.
Customer Reviews
Overall Rating
1 thumbs up!
2 Problems:

- it's not an update fr a HK450 / T-REX 450 but for the 450 PRO! You need dampers and shaft from 450 pro.

- The included golden washers are wrong size, they touch the inner ring of the bearings. Outer diameter is ok, but inner diameter should be >1mm larger. This is a big problem, I could not find these washers anywhere :( It _works_ with the included washers, but it is suboptimal, the gearings are not working smooth.

7 comments. Reply..

Overall Rating
1 thumbs up!
I managed to get this together and when put together correctly, it does fit and align as required. When assembling the swash follower arms, it's important to get the directions of the parts right, otherwise the alignment is out.
A small 0.25mm washer between the flange bearings stops them from binding when the screw is tightened.
The links on the plastic arms are a fraction too large. Align balls are 4.75mm. These links are more like 4.8mm.

6 comments. Reply..

Overall Rating
Like it?

sehr effektiver und preiswerter Umbau fr die 450er Klasse- wichtig unbedingt Blattlagerwelle vom Pro nehmen-

mit dem- Beastx - zusammen ein super Combo

Gruss Thomas

3 comments. Reply..

Overall Rating
Like it?
bought 2 of these,really nicely machined well made unit. Requires 450 pro feathering shaft, and some Curtis Youngblood green(hard)dampers.
I'd rather pay more and have these included in head kit. Follower arms have very large and inconsistent ball link holes. 4.68mm to 4.84mm. No balls out there that fit properly and you don't want to lose these arms in flight, read major crash!! (assembly guide pix

5 comments. Reply..

Overall Rating
Like it?
this is not a straet fit on a 450 v2 as the fether sharft is to short you will need a 52mm sharft from the 450 pro not that mind but i have to wait for them to be in stock [hk y not put it in the bag]

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