Mason Bokeh Ti
Gravel · 8 sizes
The Bokeh Ti on masoncycles.cc
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- Bike
- Mason Bokeh Ti · Gravel · 8 sizes
- Geometry
- masoncycles.cc, fetched 20 Oct 2026, re-checked, no differences
- Seat angle convention
- Calculated from Mason'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) | Standover (mm) |
|---|---|---|---|---|---|---|---|---|
| 48CM | 525 | 364 | 69.5 | 74 | 100 | 435 | 1013 | 723 |
| 50CM | 539 | 364 | 69.5 | 74 | 115 | 435 | 1018.5 | 748 |
| 52CM | 555 | 374 | 70 | 74 | 130 | 435 | 1030 | 766.5 |
| 54CM | 567 | 379 | 70 | 73 | 145 | 435 | 1040 | 785 |
| 56CM | 578.5 | 384 | 70.5 | 73 | 155 | 435 | 1044 | 800 |
| 58CM | 592.7 | 397 | 71 | 72.5 | 170 | 435 | 1057.5 | 822 |
| 60CM | 607 | 403 | 71 | 72.5 | 185 | 435 | 1068.6 | 837 |
| 62CM | 632.5 | 407.5 | 71.5 | 72.5 | 210 | 435 | 1076 | 860 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The 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.
Stock stem and bar per size48CM 70 x 400, 50CM 80 x 400, 52CM 90 x 420, 54CM 90 x 440, 56CM 100 x 440, 58CM 100 x 460, 60CM 110 x 460, 62CM 110 x 460 (stem length x bar width, mm)
Frame facts
read from the maker's words, not a table: masoncycles.cc- Tyre clearance
- 700c x 50 mm, 650b x 55 mm
- Bottom bracket
- not recorded yet
- Axles and brakes
- not recorded yet
- UDH
- not recorded yet
- Seatpost
- not recorded yet
- Frame weight
- not recorded yet
In the maker's words
Kept whole, as I read it off masoncycles.cc.No cockpit with the frameset; complete builds come with bars, stem and cranks "pre-set to match frame size".
Cockpit and seatpost, in the maker's words · 83 words
No cockpit with the frameset; complete builds come with bars, stem and cranks "pre-set to match frame size". The chart's STEM row prints stem lengths 70, 80, 90, 90, 100, 100, 110, 110 (48CM to 62CM) mm and its HANDLEBAR (OUTSIDE DIMENSION) row prints 40, 40, 42, 44, 44, 46, 46, 46 for 48CM to 62CM (cm, outside dimension). Two-piece bar and stem; the frameset comes with a Deda headset, expander bung and top cap; no bar is named on the frameset page.
OFFICIAL SOURCE: Mason Cycles product page for the Bokeh Ti Frameset ("The latest evolution of our unique MASON Bokeh Ti frameset", pre-order at fetch time), eight sizes 48CM to 62CM, labels as printed. Source: html table (official Mason Cycles product page "Bokeh Ti Frameset", the "Full geometry chart" table in the page markup; fetched 2026-10-20
How I read the maker's table
Some angle cells carry a degree sign in the markup (71.5º), stripped by the parser. Stack datum: the page's geometry diagram (/media/images/diagram-geometry.png, read for the datum only, not stored) draws stack and reach to the head tube top; no headset cover height is given. The 48CM STAND-OVER and TRAIL cells carry "[650 x 47]" (bracket stripped, number kept); the other sizes name no tyre; the chart matches the Exposure's 650b trail pattern, so wheel_size 650b, tyre_width_mm null. FLAGGED: the 58CM and 60CM trail cells read 71 with a 71.0 head angle and 50 offset, where the Exposure chart prints 67.8 for the same angle and offset; kept as printed. stock_bar_width is the HANDLEBAR (OUTSIDE DIMENSION) row, printed in cm, converted to mm (42 -> 420) where one width is printed; it is the bar's OUTSIDE dimension as the maker labels it, not centre to centre. RIDER HEIGHT GUIDE cm 151-160 to 188-198; FORK WEIGHT RANGEFINDER AS 515gr. Clearance "650b x 55 [2.1”] or 700c x 50 wheel/tyre sizes"; MASON Penta carbon seatpost included. Model year: not printed on the page (model_year null). Bike Insights files "Bokeh TI" 2025.
Source: html table (official Mason Cycles product page "Bokeh Ti Frameset", the "Full geometry chart" table in the page markup; fetched 2026-10-20, HTTP 200)