Grind ARC

A race-focused road bike from 2026, made in 6 sizes from XXS to XL. Fits tyres up to 32 mm.

Size

Stack 523 mmReach 376 mm

Geometry

Grind ARC geometry by frame size
Size
Fit
Stack (mm)How high the front sits	500	503	523	542	565	587
Reach (mm)How far forward the bars start	365	370	376	384	392	401
Stack ÷ reach Higher = more upright	1.37	1.36	1.39	1.41	1.44	1.46
Top tube (effective) (mm)Horizontal top-tube length	499	509	526	539	559	575
Seat tube angle Saddle position over the pedals	75°	74.5°	74°	74°	73.5°	73.5°
Seat tube length (mm)Frame size reference	405	425	465	495	525	545
Standover (mm)Clearance when you stop	740	760	773	793	810	830
Handling
Head tube angle Steeper = quicker steering	70.5°	71°	71.5°	72.5°	73°	73.3°
Fork offset (mm)Fork rake	48	48	48	48	48	48
Trail (mm)More = steadier steering	68	65	62	56	53	51
Wheelbase (mm)Longer = more stable	966	968	976	981	991	1004
Chainstay (mm)Shorter = snappier	405	405	405	405	405	405
BB drop (mm)More = lower centre of gravity	72	72	72	72	72	72
BB height (mm)Pedal clearance in corners	264	264	264	264	264	264
Front centre (mm)Room for your toes	572	574	582	587	598	610

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

A low, stretched position built for speed. Suits flexible riders who like to ride fast.

Size S is lower and longer than 86% of the 218 road frames we track.

The closest road frames from other ranges, against size S here.

Bikes with a similar fit, compared with size S of this bike
Bike	Size	Stack	Reach
Cube Agree C:62 Pro2026Stack same, reach +2 mm	50	same	+2 mm
Basso SV2026Stack −2 mm, reach −1 mm	48	−2 mm	−1 mm
MMR Grip 002026Stack +2 mm, reach −1 mm	S	+2 mm	−1 mm
Wilier Filante SLR ID22026Stack same, reach +4 mm	S	same	+4 mm
Bmc Teammachine R 01 FIVE2026Stack +5 mm, reach +2 mm	51	+5 mm	+2 mm
Canyon Ultimate CF 7 Di2 A.502026Stack −3 mm, reach +2 mm	XS	−3 mm	+2 mm