BikesGiantFastRoad CoMax / Rapid

Giant FastRoad CoMax / Rapid geometry

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Height178 cm · 5 ft 10 in

Inseam auto85 cm · 33.5 in

Size M

Render Align Overlay50%

Geometry

Size	XS	S	M	M/L	L	XL
Stack mm	513	539	564	588	609	633
Reach mm	378	375	377	395	403	409
Head tube angle °	71.0	71.5	72.0	72.0	72.5	72.5
Seat tube angle °	73.5	73.5	73.0	73.0	72.5	72.0
Head tube length mm	105	130	155	180	200	225
Seat tube mm	430	445	460	490	520	550
Chainstay mm	425	425	425	425	425	425
BB drop mm	70	70	70	70	70	70
Fork rake mm	45	45	45	45	45	45
Stack to reach	1.36	1.44	1.50	1.49	1.51	1.55
Effective top tube mmi	530	535	549	575	595	615
Wheelbase mmi	997	999	1004	1030	1039	1053

SizeMkey specs

Stack-to-reach (size M)1.50

More relaxed (taller and shorter) than 59% of flat-bar frames in the database at comparable sizes.

Closest geometry matches (size M)

Matched by stack, reach and head tube angle.

Opus Citato 42018M · 564 / 379 Trek Zektorflat-bar road, 201753 · 562 / 378 Liv Escape R3 W / Escape R W DiscJapan, 2022, 2022–23S · 562 / 379 Specialized Sirrus Carbon2014M · 563 / 380 Opus Citato 1 / 2 / 32018–19M · 567 / 379 All-City Super Professional52cm · 563 / 378

More from Giant

Nearest size to the FastRoad CoMax / Rapid M.

Giant Escape 1 / 2 / 3China, Asia, CurrentM · 556.2 / 410 Giant FastRoad AR / AR Advancedcurrent (c.2024–26)S · 552 / 396 Giant FCR 1 / FCR 2China, CurrentM · 568.4 / 386.2 Giant SpeederChina, CurrentXS · 557.3 / 355.4 Giant Escape R3Japan, 2027, 2027XS · 556 / 381 Giant Escape RXJapan, 2027, 2027XS · 553 / 381

Compare with another frame

Giant geometry chart · Frame stack and reach to the head tube top · Size finder assumes a 100mm stem on 20mm spacers · Report an error