Track system · TT scale
Roco TT: track pieces, radii and turnouts
Roco TT is a two-rail track system without roadbed for TT scale.
The Trackplanner catalogue lists 20 pieces: 6 straights, 5 curves, 1 flex track, 4 turnouts, 2 curved turnouts, 1 double slip and 1 turntable. The curves come in 2 radii from 321 to 365 mm.
Key facts
| Scale | TT scale |
|---|---|
| Rail system | two-rail |
| Roadbed | no roadbed |
| Status | current — in production and in the shops |
| Turnout motor | sold separately: drive 86112 by Tillig |
| Pieces in the catalogue | 20 |
| Radii | 2 · 321–365 mm |
| Straight lengths | 37 · 44 · 60.5 · 64.3 · 121 · 128.7 mm |
| Turnout angles | 10° · 20° |
Pieces by type
| Type | Count |
|---|---|
| Straights | 6 |
| Curves | 5 |
| Flex tracks | 1 |
| Turnouts | 4 |
| Curved turnouts | 2 |
| Double slips | 1 |
| Turntables | 1 |
Radii
| Radius | Angle | Articles |
|---|---|---|
| 321 mm | 30° · 10° | 4080110 · 4080130 |
| 365 mm | 30° · 20° · 10° | 4080210 · 4080220 · 4080230 |
Turnouts and crossings
| Article | Type | Angle |
|---|---|---|
| 4080420 | Turnout left | 20° |
| 4080421 | Turnout right | 20° |
| 4080410 | Turnout left | 10° |
| 4080411 | Turnout right | 10° |
| 4080460 | Curved turnout left | — |
| 4080461 | Curved turnout right | — |
| 4080800 | Double slip | 20° |
All pieces
Show all 20 pieces
| Article | Type | Dimensions |
|---|---|---|
| 35901 | Straight | 37 mm |
| 4080100 | Straight | 44 mm |
| 4080101 | Straight | 60.5 mm |
| 4080102 | Straight | 64.3 mm |
| 4080103 | Straight | 121 mm |
| 4080104 | Straight | 128.7 mm |
| 4080130 | Curve | R 321 mm · 30° |
| 4080110 | Curve | R 321 mm · 10° |
| 4080230 | Curve | R 365 mm · 30° |
| 4080220 | Curve | R 365 mm · 20° |
| 4080210 | Curve | R 365 mm · 10° |
| 4080105 | Flex track | 640 mm |
| 4080420 | Turnout left | 20° |
| 4080421 | Turnout right | 20° |
| 4080410 | Turnout left | 10° |
| 4080411 | Turnout right | 10° |
| 4080460 | Curved turnout left | — |
| 4080461 | Curved turnout right | — |
| 4080800 | Double slip | 20° |
| 35900 | Turntable | — |
Dimensions in mm, angles in degrees, from the Trackplanner catalogue. Where the data does not give a value unambiguously, the field stays empty.
Track plans with Roco TT
The gallery has 16 public track plans built with Roco TT. These are the ones it recommends right now:
Changes
12 October 2026
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4080410 Appearance
Turnouts and crossings were missing sleepers, mostly near the joints. The gaps are closed, and the sleepers there are spaced like on the rest of the track.
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4080411 Appearance
Turnouts and crossings were missing sleepers, mostly near the joints. The gaps are closed, and the sleepers there are spaced like on the rest of the track.
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4080420 Appearance
Turnouts and crossings were missing sleepers, mostly near the joints. The gaps are closed, and the sleepers there are spaced like on the rest of the track.
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4080421 Appearance
Turnouts and crossings were missing sleepers, mostly near the joints. The gaps are closed, and the sleepers there are spaced like on the rest of the track.
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4080460 Appearance
Turnouts and crossings were missing sleepers, mostly near the joints. The gaps are closed, and the sleepers there are spaced like on the rest of the track.
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4080461 Appearance
Turnouts and crossings were missing sleepers, mostly near the joints. The gaps are closed, and the sleepers there are spaced like on the rest of the track.
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4080800 Appearance
Turnouts and crossings were missing sleepers, mostly near the joints. The gaps are closed, and the sleepers there are spaced like on the rest of the track.
8 October 2026
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35901 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080100 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080101 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080102 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080103 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080104 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080105 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080110 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080130 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080210 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080220 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080230 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080410 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080411 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080420 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080421 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080460 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080461 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
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4080800 Appearance
Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
5 October 2026
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4080420 Appearance
End sleeper added at the joint (joint marker).
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4080421 Appearance
End sleeper added at the joint (joint marker).
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4080460 Appearance
End sleeper added at the joint (joint marker).
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4080461 Appearance
End sleeper added at the joint (joint marker).
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4080410 Appearance
Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
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4080411 Appearance
Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
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4080420 Appearance
Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
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4080421 Appearance
Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
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4080460 Appearance
Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
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4080461 Appearance
Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
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4080800 Appearance
Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.