Zonie
Well-Known Member
- Joined
- Dec 28, 2011
- Messages
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I have not really been able to find the tube sizes for the DRM's easily, so I decided to create this thread to act as a definitive resource.
Lots of posts out there, but still no confirmed data.
I have a regular DRM and a PSII DRM.
My PSII needs body tube replacement at the top, so I decided to make it a 4" Der Big Red Max.
From all I can find, the Der Big Red Max uses a full 18" BT-60. (Is this correct?).
If so, I have the following data:
Perhaps others here can add to the data, and I can fill in the entire table.
Lots of posts out there, but still no confirmed data.
I have a regular DRM and a PSII DRM.
My PSII needs body tube replacement at the top, so I decided to make it a 4" Der Big Red Max.
From all I can find, the Der Big Red Max uses a full 18" BT-60. (Is this correct?).
If so, I have the following data:
| Model | BT | Length of BT | Method |
| DRM | BT-60 | 8.5" | Measured |
| DBRM | BT-60 | 18" | Various posts assumed |
| PSII DRM | 4" | 20.75 | measured |
| Upsize PSII DBRM | 4" | 43.94 | Calc'd 2.11X |
| Mini DRM | |||
| Micro DRM | |||
| Fat Boy DRM | BT-80 | 8" | Measured |
| Goblin DRM | |||
Perhaps others here can add to the data, and I can fill in the entire table.
