General Part Discussion

[Timewhatistime]

53 minutes ago, dhc6twinotter said:

 Nevermind, I think it's the new 8T clutch gear.  Apparently it was originally black before they decided to use red in the model.

Seems quite plausible to me...

I imagine the situation as follows:

Designer: "We need a new gear... let's make it black so that it will blend in as much sets as possible without standing out or disturbing too much. LEGO fans will like it for its inconspicuousness and versatily."

Management (choking and shaking the unicorn): "We've got an even better idea..."

[HydroWorld Outlook]

51 minutes ago, Bartybum said:

Technically speaking reliable Technic stepper mechanisms have been possible for well over a decade now. The reason this part likely exists is so that they have an immediate way of having nine gears, since that's how many the gearbox has.

I know that, I just thought this particular new piece was quite interesting since this is the first time - or at least one of the first times - that LEGO has introduced a 9-base Technic part.

[msk6003]

For new 18/14 gear meshing, @Sariel already did test even before 11 years ago. I timestamped to 18t gear but 64 also has test.

 

[2GodBDGlory]

3 hours ago, HydroWorld Outlook said:

While the arrival of this new stepper gear piece indicates that proper stepper mechanisms are now finally possible (at last!), the odd tooth count may limit its usefulness for many applications, especially since most gears in the Technic system—and in fact almost all—have an even number of teeth divisible by 2, 4, 6, or 8. A 9-tooth stepper gear would rotate about 40° per tooth. That's 5° short of 45°, which would've been one-eighth of a full rotation, and 50° short of 90°, which would've been a quarter rotation. Unfortunately, that means those who choose to use this gear with a LEGO motor won't really be able to use non-encoded servos not designed for rotational intervals less than 90° or even 45°, at least not without significant down-gearing.

We did have a similar 8-sided part a couple years back in the P1, so the more common bases should already be covered

[R0Sch]

I really don't get why they made the 8T gear w/ clutch red instead of black as shown on the parts tray, especially since the sliding 8T gear and the 16t gear w/ clutch are also red. So not even a proper color coding system. Orange for the CV joint w/ 4L axle and 18T gear is also a weird color choice. What's next? Magenta or perhaps Lime too?

[aeh5040]

[HydroWorld Outlook]

Yeppers—this new screenshot fully and completely confirms everything said before. So to review, across both the 42232 and 40894 sets, we get all of the following new parts:

• 8T Clutch Gear
• 9T Gear-Shifter Sprocket
• 14T Spur Gear
• 18T Clutch Gear
• CV Joint with 4L Axle
• Large Suspension Wishbones
• Two-Piece Wheel Hub Elements
• Large Hard Shock Absorber (Estimated 11L-15L Length Contracted, 15L-19L Length Extended)

The inclusion of the 18T Clutch Gear validates my previous comment—this must be how the unusual rotational increments imposed by the 9T Gear Shifter Sprocket are corrected and converted back into the standard divisible-by-4 LEGO geometry. While I won’t unfortunately be able to buy this set due to cost, I am sure looking forward to buying these parts individually once they hit LEGO’s Pick-a-Brick shop. I am also looking forward to reading New Elementary’s review of all these new elements.

I have to admit that this is sure looking to be a good year for new Technic parts, despite the fact that Technic as a whole is still suffering from the whole “licensed car” fever.

Edited June 19 by HydroWorld Outlook

[aeh5040]

2 hours ago, HydroWorld Outlook said:

The inclusion of the 18T Clutch Gear validates my previous comment—this must be how the unusual rotational increments imposed by the 9T Gear Shifter Sprocket are corrected and converted back into the standard divisible-by-4 LEGO geometry.

No, I don't think so. The 14/18 combination appears in the body of the gearbox itself, not in the control system. The purpose is simply to provide a different intermediate gear.

I'm guessing that the 1/9 rotation is handled by the new red and yellow cylinders having their grooves at unusual angles relative to their axle, although it's not so clear exactly how. The cylinders are connected directly to the new 9-position detent wheel.

Edited June 19 by aeh5040

[Stereo]

Looking at them, I think the red drum has 3 engagements 120° apart, and the yellow one has a single 120° section that engages.  Which should also mean the axles are 120° different positions on the yellow one (30°, modulo 90) and 40° different on the red one, so that the 3 drums on each side engage at different times.  So your gear pattern is Y1R1, Y1R2, Y1R3, Y2R1, etc.

Y1 XXX______

Y2 ___XXX___

Y3 ______XXX

R1 X__X__X__

R2 _X__X__X_

R3 __X__X__X

Guessing the build will lock out the shifting temporarily so you can assemble everything in the correct orientation, since it takes a while to go the full length of the chassis, then unbuild that and put the regular detent in.

Edited June 19 by Stereo

[2GodBDGlory]

So I guess no regular 22T gear yet... I'd still had hope that the non-clutch variant would be hidden somewhere in the set, but if it's not in these "new part" presentations, it's probably not there at all. That's unfortunate, but will hopefully be rectified before too long!

[Plumber]

22 or 32?

[dhc6twinotter]

I wonder how well the new 14t and 18t gears mesh with the new 64t gear from the road bike?

[SNIPE]

On 6/19/2026 at 11:39 PM, dhc6twinotter said:

I wonder how well the new 14t and 18t gears mesh with the new 64t gear from the road bike?

You might want to try this:
https://marian42.de/gears/?seq=14,64
https://marian42.de/gears/?seq=18,64
Click the 'edit gear sequence tab, then click on the links saying:

4.875 units or 4.5 ✕ 2
5.125 units or 5 ✕ 1

This is only for whole and half spacing, not technic brick spacing but should be good enough. Sariels video does not show half spacing, more than 2 gear combinations, and his web tool/app does not allow for custom gear sizes except on the app, but that only is for the ratio and not the gear coupler/

Edited June 20 by SNIPE

[aeh5040]

13 hours ago, dhc6twinotter said:

I wonder how well the new 14t and 18t gears mesh with the new 64t gear from the road bike?

18t and 64t should mesh at the 5,1 diagonal point. (Slightly tight, but OK).

Other good diagonal meshes on the regular grid are:

14/8 at 1,1

14/36 at 3,1

14/56 at 4,2

18/18 at 2,1

18/40 at 3,2

18/64 at 5,1

And existing ones with the 64t:

8/64 at 4,2

28/64 at 5,3

36/64 at 6,2

60/64 at 6,5

The 8/14 mesh at the 1,1 diagonal looks by far the most useful.

Edited June 20 by aeh5040

[HydroWorld Outlook]

20 hours ago, aeh5040 said:

No, I don't think so. The 14/18 combination appears in the body of the gearbox itself, not in the control system. The purpose is simply to provide a different intermediate gear.

I'm guessing that the 1/9 rotation is handled by the new red and yellow cylinders having their grooves at unusual angles relative to their axle, although it's not so clear exactly how. The cylinders are connected directly to the new 9-position detent wheel.

We'll know for sure when the instruction booklet gets released and reviews are done. RacingBrick has already put out a build review for the 40894 set, though I haven't gotten a chance to take a look at that yet. Now, back to parts:

19 hours ago, Stereo said:

Looking at them, I think the red drum has 3 engagements 120° apart, and the yellow one has a single 120° section that engages.  Which should also mean the axles are 120° different positions on the yellow one (30°, modulo 90) and 40° different on the red one, so that the 3 drums on each side engage at different times.  So your gear pattern is Y1R1, Y1R2, Y1R3, Y2R1, etc.

Y1 XXX______

Y2 ___XXX___

Y3 ______XXX

R1 X__X__X__

R2 _X__X__X_

R3 __X__X__X

Guessing the build will lock out the shifting temporarily so you can assemble everything in the correct orientation, since it takes a while to go the full length of the chassis, then unbuild that and put the regular detent in.

I agree that this setup seems the most probable.

19 hours ago, 2GodBDGlory said:

So I guess no regular 22T gear yet... I'd still had hope that the non-clutch variant would be hidden somewhere in the set, but if it's not in these "new part" presentations, it's probably not there at all. That's unfortunate, but will hopefully be rectified before too long!

Yes. I'm sure at this rate, now that LEGO has finally overcome the roadblocks to creating new Technic gear elements, normal 18T and 22T gears are right around the corner.

Edited June 20 by HydroWorld Outlook

[danielhstahl]

So if my calculations are right in theory we could have a single six speed gearbox with 8 to 24, 12 to 20, 16 to 16, 18 to 14, 20 to 12, and 24 to 8.

 

The ratios between are good too, ranging from 1.3 to 1.8. 

I think the drums would work too when using the motorcycle 120 degree.

 

Edit: 6 speed plus neutral (two "unused" spots on the 8 sprocket)

Edited June 20 by danielhstahl

[1gor]

8 minutes ago, danielhstahl said:

So if my calculations are right in theory we could have a single six speed gearbox with 8 to 24, 12 to 20, 16 to 16, 18 to 14, 20 to 12, and 24 to 8.

 

The ratios between are good too, ranging from 1.3 to 1.8. 

I think the drums would work too when using the motorcycle 120 degree.

Or 7 in line (like sequential)

8 to 24

12 to 20

14 to 18

16 to 16

18 to 14

20 to 12

24 to 8

[2GodBDGlory]

11 minutes ago, 1gor said:

Or 7 in line (like sequential)

8 to 24

12 to 20

14 to 18

16 to 16

18 to 14

20 to 12

24 to 8

Yep! Though we don't have a 14T clutch, so at least one driving ring would have to be on the opposite shaft 

[pleegwat]

2 hours ago, HydroWorld Outlook said:

Yes. I'm sure at this rate, now that LEGO has finally overcome the roadblocks to creating new Technic gear elements, normal 18T and 22T gears are right around the corner.

They might even release a 32T gear at some point?

[1gor]

7 hours ago, pleegwat said:

They might even release a 32T gear at some point?

That should fit 16T...

[Lyichir]

New Elementary posted a preview of the new gear shifter elements. I'm afraid their usefulness goes over my head as an extremely casual Technic fan, but thought some of y'all might find the video interesting: 

 

[AVCampos]

I don't consider myself a casual Technic fan (but not expert either), and it also goes over my head.

[dhc6twinotter]

Yeah, It's a bit over my head too.  My math skills aren't as good as AEH5040's skills or others, so I'm still trying to figure this out.    I have a MOC I'm working on (which I'll probably never finish), and I think I can use these drums on it, if they work how I think they do.

[HydroWorld Outlook]

On 6/21/2026 at 8:56 AM, Lyichir said:

New Elementary posted a preview of the new gear shifter elements. I'm afraid their usefulness goes over my head as an extremely casual Technic fan, but thought some of y'all might find the video interesting: 

Yes indeed we will. I had already noticed before there was a possibility of new gear shifter drum elements as well since we saw some positioned on the table next to the other new elements for 42232 in the YouTube video of the in-person launch event, but I couldn't be certain they were new parts by the angle from which they were photographed, which is why I excluded them from my last post. Same thing for the small shock absorbers, though I couldn't be certain those were going to be new parts since we could only see their 3D-printed form.

That being said, now that we have more concrete and finalized information, I can now confidently update this list. Across both the 42232 and 40894 sets, and excluding the car's exclusive wheels of course, we get all of the following genuinely-new parts:

• 8T Clutch Gear (Technic Gear 8 Tooth with Clutch on One Side (TBA | 7557))
• 9T Gear-Shifter Sprocket (Technic Gear Stepper 9 Tooth - (116065 | TBA))
• 14T Spur Gear (Technic Gear 14 Tooth - TBA | 7785))
• 18T Clutch Gear (Technic Gear 18 Tooth with Clutch on Both Sides - (TBA | 7786))
• New Technic 3L-Diameter Changeover Cylinders (Gear Shifter with Groove, 40° Axle Offset in Red (6546505 | 7445) + Gear Shifter with Groove, 60° Axle Offset in Yellow (6546506 | 7446))
• CV Joint with 4L Axle (Technic Steering / CV Ball Joint Female 4L (TBA | 7659))
• Large Suspension Wishbones (Technic Wishbone 7 x 7 x 4 (TBA | 7558))
• Large Technic Quarter-Rounded Panel (Technic Panel Round Corner 5 x 5 x 2 (TBA | 7661))
• New Technic Two-Piece Wheel Hub Elements (Technic Steering Wheel Hub Holder with 2 Ball Joints and 2 Axle Holes in Black (6583540 | 7169) + Brake Disc with CV Ball Joint in Dark Bluish Gray (6613815 | 7168))
• New Technic Shock Absorbers (Technic Shock Absorber 13L with Black Spring in Light Bluish Gray (6579396 | TBA) + Technic Shock Absorber 6L with Black Spring in Light Bluish Gray (6579418 | TBA) 

This is quite a lengthy list of new parts for just one set. Like I said before, this is turning out to be a good year for LEGO Technic despite the whole licensed-car fever thing. Hopefully these new parts are setting us up for some good semicentennial anniversary sets come 2027. I will be keeping a watchful eye on LEGO over this next year for sure.

On 6/23/2026 at 4:07 PM, dhc6twinotter said:

Yeah, It's a bit over my head too.  My math skills aren't as good as AEH5040's skills or others, so I'm still trying to figure this out.    I have a MOC I'm working on (which I'll probably never finish), and I think I can use these drums on it, if they work how I think they do.

Well, from my understanding, and based on New Elementary's review of all the brand-new parts of the 42232 set here, these brand-new Technic Changeover Cylinder, or gear shifter drum elements work relatively similarly to the previous 4158 one introduced in 2023's 42159 Yamaha MT‑10 SP set. However, in addition to their colors being different this time around, they are also completely new molds with different functional characteristics. Here is a summary of all the differences:

- Toggle Direction: Whereas the original version of the changeover cylinder toggles driving ring holders both up and down, resulting in a continuously-rotating switch, the new versions only toggle up or down (depending on which direction you orient them) one-way, meaning that they essentially act as clean, binary 0 and 1 gates. This means they keep a specific transmission path completely disengaged (0) for a massive portion of the rotation, and then sharply snap the driving ring into engagement (1) only when their precise matrix combination (like B2 or C1) is mathematically called upon.

- Step Count: Unlike the original changeover cylinder, which had exactly 8 steps and two to four short continuous 45° groove waves:

• The red gear shifter drum piece has three slightly-longer continuous 40° groove waves, and the internal axle hole is offset 60° such that 6 distinct fractional positions collectively yield a full 360° rotation, and
• The yellow gear shifter drum piece has one much longer continuous 120° groove wave, and the internal axle hole is offset 30° such that 12 distinct fractional positions collectively yield a full 360° rotation.

Therefore, mathematically speaking, by forcing the red changeover cylinder to cycle faster (changing gears every 40°) and the yellow changeover cylinder cycle slower (acting as a secondary multiplier, changing gears every 30°), these two pieces theoretically (and only theoretically until or unless proven accurate) split the transmission operation into two stages, working together like the hour and minute hands of a clock. When driven by the new 9-tooth stepper gear part included in this set (which cycles the entire, complete transmission 1 step/gear per every 40° rotation at the master control level), their unique wave shapes collectively overlap in 9 distinct, non-repeating combinations—perfectly mirroring Koenigsegg’s real-world 9-speed Light Speed Transmission, like this:

- Yellow Changeover Cylinder Phase A + Red Changeover Cylinder States 1, 2, 3 = Gears 1, 2, 3

- Yellow Changeover Cylinder Phase B + Red Changeover Cylinder States 1, 2, 3 = Gears 4, 5, 6

- Yellow Changeover Cylinder Phase C + Red Changeover Cylinder States 1, 2, 3 = Gears 7, 8, 9

Does that sound like what you were thinking? Please note that this explanation comes just from my own understanding of the math behind how these new parts may work, and I cannot certify that it's accurate because I do not have access to the physical parts nor the Koenigsegg set, so other members should feel free to chime in and correct me if I am mistaken about any of the above.

Edited Sunday at 01:08 PM by HydroWorld Outlook

[Danil]

http://flic.kr/p/2skNAQe

Edited June 26 by Danil
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