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.