Merida REACTO 5000

A race-focused road bike from 2023, made in 4 sizes from XS to LG. Fits tyres up to 30 mm.

Size

Stack 542 mmReach 390 mm

Geometry

Merida REACTO 5000 geometry by frame size
Size
Fit
Stack (mm)How high the front sits	529	542	557	571
Reach (mm)How far forward the bars start	384	390	395	400
Stack ÷ reach Higher = more upright	1.38	1.39	1.41	1.43
Top tube (effective) (mm)Horizontal top-tube length	536	545	560	575
Seat tube angle Saddle position over the pedals	74°	74°	73.5°	73°
Seat tube length (mm)Frame size reference	500	520	540	560
Head tube length (mm)Front-end height	112	128	140	155
Standover (mm)Clearance when you stop	771	792	810	826
Handling
Head tube angle Steeper = quicker steering	72°	72.5°	73.5°	73.5°
Fork offset (mm)Fork rake	46	45	45	45
Trail (mm)More = steadier steering	61	59	53	53
Wheelbase (mm)Longer = more stable	983	990	990	999
Chainstay (mm)Shorter = snappier	408	408	408	408
BB drop (mm)More = lower centre of gravity	70	66	66	66
BB height (mm)Pedal clearance in corners	266	270	270	270
Front centre (mm)Room for your toes	585	591	591	600

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 SM is lower and longer than 90% of the 218 road frames we track.

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

Bikes with a similar fit, compared with size SM of this bike
Bike	Size	Stack	Reach
Merida SCULTURA 10K2026Stack same, reach same	SM	same	same
Cube Litening Air C:68X Pro2026Stack same, reach same	54	same	same
Wilier Filante SL2023Stack −4 mm, reach −2 mm	M	−4 mm	−2 mm
MMR Adrenaline 00 SC452026Stack +4 mm, reach −3 mm	M	+4 mm	−3 mm
MMR Aelion 002026Stack +4 mm, reach −3 mm	M	+4 mm	−3 mm
Canyon Ultimate CF 7 Di2 A.502026Stack −3 mm, reach same	S	−3 mm	same

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