Planet X RT-80
Endurance road · 6 sizes
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- Bike
- Planet X RT-80 · Endurance road · 6 sizes
- Geometry
- bikeinsights.com, fetched 21 Oct 2026
These numbers are second-hand, from Bike Insights. I have not checked them against the maker's own table. Bike Insights cites planetx.co.uk. - Cockpit
- Generic stem and bar, assumed
- Solved with
- cover 15 mm (assumed), max spacers 40 mm (assumed), stem clamp centre 20 mm (assumed), so every verdict carries ±10 mm at the bar
- Sheet
- 22 October 2026 · 686 bikes, 74 makes, 3,984 sizes in the catalogue
Geometry, every size, from Bike Insights
The tinted row is the size drawn beside it. Press a size to draw it.| Size | Stack (mm) | Reach (mm) | Head angle (deg) | Seat angle (deg) | Head tube (mm) | Chainstay (mm) | Wheelbase (mm) | Standover (mm)not published |
|---|---|---|---|---|---|---|---|---|
| XS 48cm | 513 | 373 | 71.5 | 74.5 | 110 | 408 | 966.3 | |
| S 50cm | 519.5 | 381 | 72 | 74.5 | 115 | 408 | 972.2 | |
| M 54cm | 543 | 385 | 72.5 | 73.5 | 140 | 408 | 975.2 | |
| L 56cm | 557.5 | 394.5 | 73 | 73.5 | 155 | 408 | 990 | |
| XL 58cm | 579 | 398 | 73 | 73 | 175 | 410 | 995.1 | |
| XXL 60cm | 598 | 401.5 | 73.5 | 72.5 | 195 | 410 | 1004.2 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The L 56cm drawn to scale from the table, with no build on it. Stack and reach run from the bottom bracket to the top of the head tube; every size is solved from those two. One square is 100 mm.
The maker's cockpit
No stock cockpit I can name, so every size is solved on a generic stem and bar unless you choose one on the sheet.Generic stem and barAssumedNo bar is listed for this frame.
Frame facts
not read off the maker's page yet: planetx.co.uk- Tyre clearance
- not recorded yet
- Bottom bracket
- not recorded yet
- Axles and brakes
- not recorded yet
- UDH
- not recorded yet
- Seatpost
- not recorded yet
- Frame weight
- not recorded yet
Notes on the cockpit
Kept whole, as I read it off bikeinsights.com.Not recorded by Bike Insights beyond the base build's stem length and bar width per size; no bar is named.
Cockpit and seatpost · 20 words
Not recorded by Bike Insights beyond the base build's stem length and bar width per size; no bar is named.
SECOND-HAND NUMBERS, NOT CHECKED AGAINST THE MAKER: Bike Insights' record of the Planet X RT-80, version "2020", build "Base" (rim, carbon frame, drop bar on Bike Insights), 6 sizes XS 48cm, S 50cm, M 54cm, L 56cm, XL 58cm, XXL 60cm. Source: aggregator (Bike Insights): version "2020", build "Base", numbers read from the page's __NEXT_DATA__ data script; the maker no longer publishes this table
How I read Bike Insights' table
Planet X's own site (planetx.co.uk, its current range read on 2026-10-21) no longer carries this generation's table, so Bike Insights is the source of last resort (D4 second amendment). The current generation, from the maker, is planet-x-ec-130.json, planet-x-london-road.json, planet-x-pro-carbon-xv.json, planet-x-reiver.json, planet-x-tempest.json. Bike Insights cites as its source: https://www.planetx.co.uk/i/q/FRPXRT80/planet-x-rt-80-carbon-road-frameset. Field mapping from Bike Insights: stack, reach, head_tube_angle, seat_tube_angle (from its seat_tube_angle field), head_tube_length, top_tube_effective (from effective_top_tube_length_center_ht_top), seat_tube_length (from seat_tube_length_center_st_top, the first of centre-to-top, centre-to-top-tube, centre-to-centre that it holds), chainstay_length, wheelbase, bottom_bracket_drop, fork offset, front_center, and from its base build the standover height, stem length and handlebar width (a width recorded in cm is converted to mm). Bike Insights stores no published trail (only its own computed one), so trail is null. Its base build lists a 622 mm rim and a 25 mm tyre. Bike Insights cites the maker's page: https://www.planetx.co.uk/i/q/FRPXRT80/planet-x-rt-80-carbon-road-frameset.