Stack and reach
How high and how far forward the top of the head tube is, from the bottom bracket. They are the two numbers that decide whether a frame can be set up like yours.
BB, or bottom bracket
The axle your cranks turn on, in the middle of the frame. Every number on this site is measured from it, because it is the one point that sits in the same place on every bike.
Headset cover
The little cap on top of the head tube, under your spacers. Most makers do not publish it, so I assume 15 mm and add 6 mm to the band, which on its own is enough to hold an answer at "probably" rather than "fits".
Stem clamp, and its centre
The collar on the steerer that your stem bolts to. I need the middle of it. Where a maker gives only the height, I assume halfway up and say so on the answer.
Steerer
The tube coming up out of the fork. The cover, the spacers and the stem all sit on it, and it is the thing a mechanic cuts to length.
Bar reach
How far forward the hoods sit from the middle of the bar. Two bars on the same stem can put your hands 20 mm apart, which is why I ask.
Setback
How far your saddle sits behind the bottom bracket.
Drop
How much lower your bar is than your saddle.
Rails, and the rail centre
The two rods under your saddle, and the middle of the straight part of them. That midpoint is the point I use, because it is the one you can find with a tape.
The band
How far out I could be, in millimetres, and why. It is a straight sum of everything I had to assume rather than a clever average, so it errs wide on purpose.
wb, stand, trail
Wheelbase, standover and trail: how long the bike is, how high the top tube is where you straddle it, and how steady the steering feels. I show them against your bike, and I leave them out when the maker does not publish them.
est.
Estimated: a number I worked out rather than read off the maker's table. Anything marked this way can move if the maker publishes the real one.
Close Escape closes it. The measuring guide has the pictures. Open the measuring guide
Winspace SLC5.0
Road · 5 sizes
Sign in and add the bike you ride, and this table will say what each size needs for your position.
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This is the bike I ride
No account is needed to read the table. Report a wrong number · Correct this bike
- Bike
- Winspace SLC5.0 · Road · 5 sizes · integrated cockpit
- Geometry
- winspace.cc, fetched 29 Aug 2026, re-checked, no differences
- 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
- 6 September 2026 · 210 bikes, 43 makes, 1,262 sizes in the catalogue
Geometry, every size, from the maker's table
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) |
|---|---|---|---|---|---|---|---|---|
| XS | 509 | 371 | 70.8 | 75 | 108 | 406 | 974 | 731 |
| S | 520 | 377 | 71.4 | 74.5 | 118 | 406 | 978 | 747 |
| M | 536 | 386 | 72.1 | 74.1 | 130 | 406 | 983 | 765 |
| L | 556 | 394 | 72.4 | 73.6 | 150 | 406 | 994 | 790 |
| XL | 576 | 404 | 72.7 | 73.1 | 170 | 406 | 1007 | 814 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The M 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.
In the maker's words
Kept whole, as I read it off winspace.cc.Winspace sells its frames bar-less or as "bundles" with its own one-piece bars (HYPER Integrated Handlebar, Zero K, Zero SL, HYPER 2 Riser; Adventure Integrated Handlebar for the gravel frames); the frame page lists no per-size stock bar or stem, so stock_stem_length / stock_bar_width are null.
Cockpit and seatpost, in the maker's words · 184 words
Winspace sells its frames bar-less or as "bundles" with its own one-piece bars (HYPER Integrated Handlebar, Zero K, Zero SL, HYPER 2 Riser; Adventure Integrated Handlebar for the gravel frames); the frame page lists no per-size stock bar or stem, so stock_stem_length / stock_bar_width are null. Head tube "NO.55R 1.5in / ACR / STD (headset included)" on the current frames: FSA ACR full-internal routing through a 1-1/2 in upper bearing, which fits Winspace's own ACR-pattern bars and any ACR-compatible stem. Spacer heights, maximum spacer stack and top-cover height are not published on the frame page. SLC5.0 page specification: sizes XS/S/M/L/XL (440/460/480/510/540), carbon T800+T1100+M65+M46, proprietary aero seatpost (table rows O/P: 320 mm with 0 mm setback on XS and S, 360 mm with 15 mm setback on M, L and XL), flat mount, 100/142 mm thru-axles (front M12 P1.0 114L, rear M12 P1.0 163L), tyre clearance up to 700x32C, headset 1-1/2 in to 1-1/2 in (FSA ACR system), internal routing, BSA threaded 68 mm bottom bracket, UDH, weight frame about 705 g (M), fork about 351 g, seatpost (360 mm) about 115 g, UD finish.
SOURCE: the maker's own store page, whose "Geometry Chart" tab holds two images and no HTML table. Source: image_table (maker's own Shopify store, product page "Geometry Chart" tab: two images, the letter drawing
How I read the maker's table
every number was read from the table image (3300x2550 px, sharp) by the collector. Table rows as printed for XS/S/M/L/XL: Tire 700C*32 all sizes (the trail row is therefore for a 32 mm tyre); STR 1.37/1.38/1.39/1.41/1.43; Recommended Height 155~163 / 163~171 / 171~179 / 179~186 / 186~193 cm; BB Height 271 all sizes; Fork Length 370 all sizes; seatpost length 320/320/360/360/360 and setback 0/0/15/15/15. Footnote on the image: "Selection of frame size is based on the measurement of the actual height of the span, height is supplemented, height is for reference only, it is recommended to collect FITTING data in order to make an accurate choice!". Front centre is not published (null). ODDITY AS PRINTED: trail rises from S (61.7) to M (61.9) although the head angle steepens, because the fork rake drops from 49 to 45 mm at M. Consistency check (mine, not published): with a 32 mm tyre on 700c (radius about 350 mm) the printed head angles and rakes give trail 65.6 / 61.9 / 61.9 / 60.4 / 58.8, within 0.5 mm of the printed row, so the table is internally consistent. MODEL YEAR: not stated on the page (Shopify product published 2025-07-15; image assets versioned 2026-07); null. Category: the page calls it "Aero, Superlight" all-round race frame; recorded as climbing road (the lightweight model in the range, next to the aero T1600). No aggregator consulted.
Source: image_table (maker's own Shopify store, product page "Geometry Chart" tab: two images, the letter drawing https://www.winspace.cc/cdn/shop/files/SLC5_Dimension_Table1_1.webp and the table https://www.winspace.cc/cdn/shop/files/SLC5_Dimension_Table1.webp (both 3300x2550, headed "Winspace Cycling Co., Ltd // SLC5"); numbers read from the table image by the collector, images NOT stored)
