Alternatives to Factor Ostro Gravel

71%

Airwolf

49 → 48	62%
52 → 51	71%
54 → 51	27%
56 → 56	16%
58 → 58	22%

= Seat Tube Angle, Chainstay, Trail

≈ Stack, Reach, Head Tube Angle, Wheelbase, BB Drop, Tire Clearance

71%

Airwolf

AIRWOLF YFR068 1061g 40mm

49 → 48	62%
52 → 51	71%
54 → 51	27%
56 → 56	16%
58 → 58	22%

= Seat Tube Angle, Chainstay, Trail

≈ Stack, Reach, Head Tube Angle, Wheelbase, BB Drop, Tire Clearance

66%

Quick Pro

QUICK PRO GR:ONE 919g

49 → XS/426	48%
52 → S/456	66%
54 → M/486	24%
56 → M/486	14%
58 → XL/546	23%
61 → XL/546	5%

= Seat Tube Angle

≈ Stack, Reach, Head Tube Angle, Chainstay, Wheelbase, Trail, BB Drop

61%

Evolve

Evolve CIMA GR 750g

49 → S	36%
52 → M	47%
54 → ML	34%
56 → L	45%
58 → L	61%
61 → XL	55%

= Stack, Seat Tube Angle, Chainstay

≈ Reach, Head Tube Angle, Wheelbase, Trail, BB Drop

60%

Incolor

INCOLOR Voyager Gravel Frameset 1600g 45mm

49 → 51	47%
52 → 54	56%
54 → 54	50%
56 → 57	60%
58 → 57	22%

= Stack, Seat Tube Angle, BB Drop, Tire Clearance

≈ Reach, Head Tube Angle, Wheelbase, Trail

≠ Chainstay

58%

LightCarbon

LightCarbon LCG087 Gravel Frameset With Micro Suspension 1480g

49 → 520	23%
52 → 490	29%
54 → M 500	38%
56 → L 530	48%
58 → XL 560	58%
61 → XL 560	34%

≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, Trail, BB Drop

57%

SEABOARD GR02 Gravel Bike Frameset Carbon Fiber Fork Off-road Long Distance Bicycle Framework 700C 142mm Thru Axle Wheelet 2500g 40mm

49 → 44	30%
52 → 47	30%
54 → 53	34%
56 → 56	44%
58 → 59	57%
61 → 59	36%

= Chainstay

≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Wheelbase, Trail, BB Drop, Tire Clearance

55%

Mondince

Mondince FM336 1150g

49 → XS	45%
52 → XS	54%
54 → M	32%
56 → L	47%
58 → XL	55%
61 → XL	31%

≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, Trail

≠ BB Drop

55%

Serk

Serk A40 “The Fixer” Titanium All-Road Bike Frameset 1600g

49 → XS	55%
52 → S	52%
54 → M	45%
56 → L	41%
58 → XL	37%
61 → XXL	28%

= Chainstay

≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Wheelbase, Trail, BB Drop

54%

Seka

SEKA ExAero GR RDC 920g 52mm

49 → 52	46%
52 → 52	54%
54 → 54	42%
56 → 58	47%
58 → 61	53%
61 → 61	46%

≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, Trail, BB Drop, Tire Clearance

53%

TanTan

TanTan GR209 1238g

49 → 44	45%
52 → 44	53%
54 → 49	32%
56 → 49	34%
58 → 55	45%
61 → 55	24%

= Stack

≈ Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, Trail, BB Drop

49%

Tavelo

TAVELO GROW GRAVEL 55mm

49 → small	38%
52 → small	49%
54 → large	20%
56 → large	32%
58 → xx large	33%
61 → xx large	44%

= Seat Tube Angle

≈ Stack, Reach, Head Tube Angle, Chainstay, Wheelbase, Trail, BB Drop

≠ Tire Clearance

48%

Spcycle

Spcycel G068 Aero Carbon Gravel Frame 1120g 47mm

49 → XS	9%
52 → XS	46%
54 → S	37%
56 → S	48%
58 → M	47%
61 → L	47%

= Seat Tube Angle

≈ Stack, Reach, Chainstay, Wheelbase, Trail, BB Drop, Tire Clearance

≠ Head Tube Angle

45%

Serk

Serk A30M "The Captain Integrated" Titanium All-Road Bike Frameset 1690g 35mm

49 → XS	38%
52 → S	30%
54 → M	45%
56 → L	31%
58 → XXL	8%

= Chainstay

≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Wheelbase, Trail, BB Drop

≠ Tire Clearance

45%

Elves

ELVES MORI AEROX (UCI Approved) 1020g 47mm

49 → 49	43%
52 → 52	45%
54 → 54	28%
56 → 59	20%
58 → 59	35%
61 → 59	17%

= BB Drop

≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Wheelbase, Trail, Tire Clearance

≠ Chainstay

44%

Assisting Force

Assisting Force AF01 Standard Carbon Gravel Bike Frame - Versatile Performance 1200g 50mm

49 → XS	15%
52 → S	34%
54 → M	9%
56 → M	16%
58 → XL	33%
61 → XXL	44%

= Chainstay

≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Wheelbase, Trail, BB Drop, Tire Clearance

42%

Tavelo

TAVELO WILD 1135g

49 → 460	24%
52 → 490	32%
54 → 490	12%
56 → 530	38%
58 → 560	42%
61 → 560	27%

= Seat Tube Angle, Chainstay

≈ Stack, Reach, Wheelbase, Trail, BB Drop

≠ Head Tube Angle