Unofficial File parts/s/15851s01.dat
part image
File Header:
0 ~Minifig Helmet Motorcycle with Open Face and Visor - Half Bottom
0 Name: s\15851s01.dat
0 Author: Evert-Jan Boer [ejboer]
0 !LDRAW_ORG Unofficial_Subpart
0 !LICENSE Redistributable under CCAL version 2.0 : see CAreadme.txt

0 BFC CERTIFY CCW

Status:
1 'hold' vote. (CHN)
Size: 44021 bytes
Reviewers' certifications:
MagFors=hold
Philo=certify
Required (unofficial) subfiles:
(none)
Related (unofficial) subfiles:
File reviews and updates:
At Mon Jun 7 11:50:01 2021, the file was initially submitted.
Submitted by: ejboer
At Thu Jun 24 07:55:01 2021, the following review was posted:

Reviewer: Philo
Certification: certify
Comments:
The tori in main part could be placed here...

At Sat Jul 31 15:45:01 2021, the following review was posted:

Reviewer: MagFors
Certification: hold
Comments:
Concave surfaces that should be convex:
3 5 -10.364 -.98 -9.324 -8.023 1.525 -12.185 -4.557 -5.768 -9.324
3 5 -4.557 -5.768 -9.324 -8.023 1.525 -12.185 -3.719 -3.6 -11.522
3 12 -14.908 17.053 1.381 -15.792 9.846 -.079 -15.728 7.124 5.834
3 12 -16.028 6.979 -.079 -15.728 7.124 5.834 -15.792 9.846 -.079
3 12 -16.028 6.979 -.079 -16.2 5.838 2.017 -15.728 7.124 5.834
3 5 -13.077 18.341 6.71 -14.401 8.367 9.343 -10.264 17.683 10.637
3 5 -10.264 17.683 10.637 -14.401 8.367 9.343 -12.047 9.209 12.72

The earpiece, or whatever it is, is missing on the side of the helmet.
https://youtu.be/6kfHaHpkUOk?t=139
Something like this:
1 16 -16.1643 12.3946 4.194 -.19029 .97655 .26092 -1.48341 -.1381 .08105 .11517 -.16516 1.47491 4-4cylc.dat