Surly Midnight Special geometry, BikeViewer

Open full bike in BikeViewerOpen in BikeViewer

Loading 3D view…

Height178 cm · 5 ft 10 in

Inseam auto85 cm · 33.5 in

Size 54cm

Render Align Overlay50%

Geometry

Size	40cm	46cm	50cm	54cm	56cm	58cm	60cm	64cm
Stack mm	531	538	544	560	580	599	620	641
Reach mm	363	366	379	389	393	402	409	423
Head tube angle °	71.0	71.5	72.0	72.5	73.0	73.0	73.5	74.0
Seat tube angle °	75.5	74.0	73.5	73.5	73.0	73.0	72.5	72.5
Head tube length mm	95	100	110	125	140	160	180	200
Seat tube mm	400	460	500	540	560	580	600	640
Chainstay mm	425	425	425	425	425	425	425	425
BB drop mm	70	70	65	65	65	65	65	65
Fork rake mm	50	50	50	50	40	40	40	40
Stack to reach	1.46	1.47	1.44	1.44	1.48	1.49	1.52	1.52
Effective top tube mmi	500	520	540	555	570	585	604	625
Wheelbase mmi	994	995	1007	1017	1012	1027	1035	1050

Size54cmkey specs

Stack-to-reach (size 54cm)1.44

More aggressive (lower and longer) than 83% of gravel frames in the database at comparable sizes.

Closest geometry matches (size 54cm)

Matched by stack, reach and head tube angle.

Cannondale CAADX2014–1556 · 560 / 388 Focus Mares CXcarbon, 201656 · 559 / 390 NS Bikes XRAG2025M · 562 / 388 Ceepo RindōCurrentM · 560 / 385 Thömus Sliker X3Current54 · 560 / 390 Wilier Rave SLR2022–25M · 560 / 390

More from Surly

Nearest size to the Midnight Special 54cm.

Surly Disc Trucker 26inCurrent50cm · 561 / 369 Surly StragglerCurrent54cm · 549.2 / 396.3 Surly Cross-Check202656cm · 556.5 / 394.3 Surly Disc Trucker 26inearlier generation, before 202654cm · 568.3 / 379.4 Surly Disc Trucker 700c202656cm · 613 / 387.5 Surly Disc Trucker 700cearlier generation, before 202656cm · 588 / 389.3

Surly geometry chart · Some Midnight Special numbers are derived, not from the chart · Frame stack and reach to the head tube top · Size finder assumes a 100mm stem on 20mm spacers · Report an error