Welcome to PenBits' virtual trade stand for Scaleforum 2020.

See below for information on our range of etched-brass kits for applying sprung suspensions to proprietary, ready-to-run, 4mm scale diesel locomotives, as part of a conversion to P4 or EM standards.

• What's In The Bag?

• How Does It Work?

• Watch Them Go...

• Class 52 Update

• How To Buy

• More Information

What's in the bag?

What you get in the kit...

How does it work?

Axle Bearings, Subframes, and Bolsters: the main functional parts that you build from the kits, explained on this page (click here).

Watch them go...

LMS 10000 in action on the ECML: on Mick Wakefield's P4 layout inspired by Grantham (with some bonus Pacific action thrown in! - all the other stock in this video is sprung using Dave Bradwell's bogie and chassis kits)

Lion - taking the superelevated reverse curves on the PenBits P4 test track.

Look - real people! Messing about with 10000 at Scaleforum last year, with Mark Tatlow's Glenmutchkin.

Class 52 Update

News of our forthcoming kit for the Heljan Class 52...

The production artwork has been drawn up and is with the etchers. Unfortunately they're working at reduced capacity and at present we don't have a schedule for delivery. However, we can hope that it won't be too much longer before we're able to do a final proving build and get a production order in.

To help give us an idea of how many to produce in the first instance, if you've not already expressed an interest, you might like to drop us an email at .

For now, here's a video of the last test build in action on our test track.

How To Buy

Our mail order service is open for business and we have all the kits in stock.

Click here for details.

More Information

Please use the menus at the top of this page to navigate around the PenBits website.

You will find details there of all the kits, and full sets of instructions to read or download.