Factor Ostro Gravel frameset · RideInsights

Ostro Gravel2025

Factor · Gravel · 6 sizes

List · size 54 · CAD

$8,219

Kit weight not published

Frameset by size

Kit weight and list price per size. Gaps stay blank.

Size	Reach (mm)	Stack (mm)	Kit wt (g)	List (CAD)
49	377	515	—	$8,219
52	385	535	—	$8,219
54	394	555	—	$8,219
56	402	580	—	$8,219
58	412	605	—	$8,219
61	422	625	—	$8,219

Best in-stock in CAD. Affiliate links may earn a commission.

Retailer	Price	Stock	Link
Survey list (CAD)	US$5,999.00≈ $8,219 CAD	In stock	Buy

Gravel

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Measurement	49	52	54	56	58	61
Frame geometry
Stack	515 mm	535 mm	555 mm	580 mm	605 mm	625 mm
Reach	377 mm	385 mm	394 mm	402 mm	412 mm	422 mm
Stack / Reach	1.37	1.39	1.41	1.44	1.47	1.48
Head tube angle	71.2°	71.3°	72.2°	72.3°	72.3°	72.3°
Seat tube angle (effective)	74.5°	74°	74°	73.5°	73.5°	73.5°
Seat tube angle (actual)	—	—	—	—	—	—
Top tube (effective)	—	—	—	—	—	—
Head tube length	—	—	—	—	—	—
Seat tube length	450 mm	468 mm	483 mm	500 mm	523 mm	545 mm
Bottom bracket drop	76 mm	76 mm	74 mm	74 mm	74 mm	74 mm
Bottom bracket height	—	—	—	—	—	—
Chainstay	420 mm	420 mm	420 mm	423 mm	425 mm	425 mm
Front center	—	—	—	—	—	—
Wheelbase	999 mm	1013 mm	1014 mm	1029 mm	1047 mm	1069 mm
Fork rake (offset)	56 mm	56 mm	50 mm	50 mm	50 mm	50 mm
Fork axle to crown	—	—	—	—	—	—
Trail	62 mm	62 mm	61 mm	61 mm	61 mm	61 mm
Standover	750 mm	767 mm	786 mm	802 mm	820 mm	847 mm
Pad / effective stack	—	—	—	—	—	—
Pad / effective reach	—	—	—	—	—	—

Fasteners

Factor · Ostro

Seatpost fixation screw / bolts

Carbon prep in seat tube; min ~90 mm insertion.

5.5–6 Nm

48.7–53.1 in·lb

Hex