Bmc URS 01 LT ONE

A race-ready gravel bike from 2025, made in 5 sizes from S to XL. Fits tyres up to 47 mm.

Size

Stack 580 mmReach 410 mm

Geometry

Bmc URS 01 LT ONE geometry by frame size
Size
Fit
Stack (mm)How high the front sits	560	560	580	610	640
Reach (mm)How far forward the bars start	400	390	410	420	430
Stack ÷ reach Higher = more upright	1.40	1.44	1.41	1.45	1.49
Top tube (effective) (mm)Horizontal top-tube length	555	545	571	589	607
Seat tube angle Saddle position over the pedals	74.5°	74.5°	74.5°	74.5°	74.5°
Seat tube length (mm)Frame size reference	445	430	475	505	540
Head tube length (mm)Front-end height	133	133	140	172	204
Standover (mm)Clearance when you stop	735	727	758	778	795
Handling
Head tube angle Steeper = quicker steering	69°	69°	69.5°	69.5°	69.5°
Fork offset (mm)Fork rake	50	50	45	45	45
Trail (mm)More = steadier steering	84	84	86	86	86
Wheelbase (mm)Longer = more stable	1062	1052	1070	1091	1112
BB drop (mm)More = lower centre of gravity	76	76	76	76	76
BB height (mm)Pedal clearance in corners	260	260	260	260	260
Front centre (mm)Room for your toes	643	633	651	672	693

Underlined values are calculated by BikeLens. A dash means the brand doesn't publish it.

A racy stance with road-bike efficiency on fast, mixed surfaces.

Size M is lower and longer than 92% of the 106 gravel frames we track.

The closest gravel frames from other ranges, against size M here.

Bikes with a similar fit, compared with size M of this bike
Bike	Size	Stack	Reach
Merida SILEX 2002026Stack +8 mm, reach −8 mm	SM	+8 mm	−8 mm
Wilier Adlar2024Stack +6 mm, reach +3 mm	M	+6 mm	+3 mm
Megamo SILK 01 SLR2026Stack +1 mm, reach −2 mm	L	+1 mm	−2 mm
Megamo WEST 032027Stack −4 mm, reach −10 mm	M	−4 mm	−10 mm
Wilier Jaroon2024Stack +7 mm, reach −9 mm	M	+7 mm	−9 mm
Romet Aspre 1.02026Stack same, reach −4 mm	L	same	−4 mm

These builds share this exact geometry, so they fit the same.