Megamo PULSE 04

A race-focused road bike from 2026, made in 5 sizes from XS to XL.

Size

Stack 538 mmReach 385 mm

Geometry

Megamo PULSE 04 geometry by frame size
Size
Fit
Stack (mm)How high the front sits	503	518	538	557	581
Reach (mm)How far forward the bars start	375	380	385	390	395
Stack ÷ reach Higher = more upright	1.34	1.36	1.40	1.43	1.47
Top tube (effective) (mm)Horizontal top-tube length	460	480	500	520	540
Seat tube angle Saddle position over the pedals	74.5°	74°	73.5°	73.3°	72.8°
Head tube length (mm)Front-end height	100	115	135	155	180
Handling
Head tube angle Steeper = quicker steering	71.5°	71.5°	72.5°	72.5°	72.5°
Wheelbase (mm)Longer = more stable	972	982	986	997	1009
Chainstay (mm)Shorter = snappier	410	410	410	410	410
BB drop (mm)More = lower centre of gravity	69	69	69	69	69
BB height (mm)Pedal clearance in corners	267	267	267	267	267

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 M is lower and longer than 80% of the 218 road frames we track.

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

Bikes with a similar fit, compared with size M of this bike
Bike	Size	Stack	Reach
Grind ARC2026Stack +4 mm, reach −1 mm	M	+4 mm	−1 mm
Specialized S-Works Tarmac SL9 - Shimano Dura-Ace Di22027Stack +6 mm, reach −1 mm	54	+6 mm	−1 mm
Merida REACTO TEAM2027Stack +4 mm, reach +5 mm	SM	+4 mm	+5 mm
Merida SCULTURA 10K2026Stack +4 mm, reach +5 mm	SM	+4 mm	+5 mm
Trek Émonda ALR 52026Stack +3 mm, reach +1 mm	54	+3 mm	+1 mm
Wilier Filante SLR ID22026Stack +3 mm, reach +2 mm	M	+3 mm	+2 mm

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

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