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Boardman SLR 8.9 Women's

Endurance road · 4 sizes

The SLR 8.9 Women's on boardmanbikes.com

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Bike
Boardman SLR 8.9 Women's · Endurance road · 4 sizes
Geometry
boardmanbikes.com, fetched 22 Oct 2026, re-checked, no differences
Seat angle convention
Calculated from Boardman's table
Cockpit
Generic stem and bar, assumed
Solved with
cover 10 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 · 879 bikes, 79 makes, 4,979 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)not published Standover (mm)not published
XS 500 367 70.5 74 100 410
SM 520 376 71 74 120 410
MD 546 378 72 73.5 140 410
LG 567 387 72.5 73.5 160 410

The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.

Seat tube 485 mmHead tube 140 mmTop tube 540 mmDown tubeChainstay 410 mmSeat stayFork (estimated) stack 546reach 378Head tube top 378 / 546BB 0 / 0

The MD 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. A dashed tube is a number the maker left out (est.).

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.
Stock stem and bar per sizeXS 70 x 380, SM 70 x 380, MD 80 x 380, LG 90 x 400 (stem length x bar width, mm)

Frame facts

read off the maker's page: boardmanbikes.com
Tyre clearance
28 mm
Bottom bracket
BB86
Axles and brakes
rim brake
UDH
not published
Seatpost
27.2 mm round
Frame weight
not published

In the maker's words

Kept whole, as I read it off boardmanbikes.com.
SLR 8.9 Women's (2021): Boardman alloy stem 70/70/80/90 mm ("Women's Range Stem Length") and Boardman alloy bar 380/380/380/400 mm ("Women's Range Bar Width"), 70 mm reach x 120 mm drop, per size XS/SM/MD/LG, stored as stock fields; crank 165/165/165/170 mm.
Cockpit and seatpost, in the maker's words · 40 words
SLR 8.9 Women's (2021): Boardman alloy stem 70/70/80/90 mm ("Women's Range Stem Length") and Boardman alloy bar 380/380/380/400 mm ("Women's Range Bar Width"), 70 mm reach x 120 mm drop, per size XS/SM/MD/LG, stored as stock fields; crank 165/165/165/170 mm.
OFFICIAL SOURCE: boardmanbikes.com product page 2342 "SLR 8.9 Women's Carbon Road Bike" (slug slr-8.9-womens-2021, 2021 model year), C7 carbon aero-optimised frame, C7 carbon fork, Tektro R315 long-arm caliper brakes, 28 mm tyre clearance by the page's own words. Source: html table (official Boardman Bikes product page "SLR 8.9 Women's Carbon Road Bike" (2021), "Sizes & Fit" panel rendered as div rows, parsed by script; fetched 2026-10-22
How I read the maker's table
Four sizes XS to LG. A women's sizing table, not the men's: its XS (500/367) and SM (520/376) are frames no other Boardman file holds, and its MD and LG print the same stack, reach, angles, top tube, head tube, chainstay and BB drop as the SM and MD of boardman-slr-2021 (SLR 8.9 Disc 2021). Wheelbase, standover, front centre and trail are not published (null); stack datum not stated (null). Frame facts from the specification list: FSA BB-CF86 pressfit bottom bracket, 27.2 mm alloy seatpost. Source: html table (official Boardman Bikes product page "SLR 8.9 Women's Carbon Road Bike" (2021), "Sizes & Fit" panel rendered as div rows, parsed by script; fetched 2026-10-22, HTTP 200)