Serk A21 “The Dissident” Titanium Gravel Bike Frameset

$2,779.00$3,379.00

  • Titanium 3Al/2.5V
  • Flat mount disc brakes
  • Rear 12x142mm
  • Clearance for 700C x 45 / 650B x 55 tyres (measured)
  • Di2 Compatible
  • T47 Cast 1 Piece Bottom Bracket
  • Full internal cable routing
  • 3 bottle cage mounts
  • Dropper post compatible (1x only)
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Description

Sealed internal cabling throughout the frame
Clearance for 700c x 45 / 650b x 53
Mounts for mudguards / racks / lights
Use rear rack and mudguards mounts for the ultimate commuter bike.
Dropper Post ready!
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Specifications

700c or 650b (27.5") wheels
Internal cable routing, Di2 compatible
Internal mechanical dropper post cable routing
Flip Chip fork with side cargo mount
Seatpost diameter 27.2mm
T47 bottom bracket (68mm shell width)
Max Chainring 50/34 (2x) or 46 (1x)
700c x 40mm or 650b x 55mm measured
Headset ZS44 upper, EC44 lower
100x12mm front dropout spacing
142x12mm rear dropout spacing
Flat Mount 160mm Front and Rear (max 160mm rotor)

Fork : Serk Carbon Adventure, 12x100mm Thru-axle, Adjustable Rake, 3-pack Mount, Internal Dynamo Wiring, Carbon steerer

Fork Weight: 550g

Frame Weight:

Size S: 1840g ±5%
Size M: 1920g ±5%
Size L: 2030g ±5%
Size XL: 2100g ±5%

Includes Serk Semi-integrated headset, seatpost clamp, thru-axles, expander, Serk topcap

Geometry

Fun, sure-footed geometry: The soul of any bike is the geometry. Through years of experience of riding the backroads of Asia, we have tuned the geometry to represent what an all round adventure bike should feel like. 430mm of chainstay length makes sure that the rear end fits big volume tires and still remains snappy. The relatively steep seat angle ensures your weight is optimally centered between the two wheels and the lowered BB height makes you feel like you're sitting IN the bike rather than ON it. Along with a slackened out head angle, the A21 will smooth out the roughest roads you can throw at it.

* Size S M L XL
* REACH 364 377 390 403
* STACK 547 574 596 618
* ADDITIONAL TOP HEADSET STACK 10 10 10 10
A SEAT TUBE LENGTH 485 510 535 560
B TOP TUBE LENGTH 521 547 567 592
C HEAD TUBE LENGTH 110 139 164 188
D SEAT TUBE ANGLE 74 73.5 73.5 73
E HEAD TUBE ANGLE 70 70 70 70
F BB DROP 75 75 73 73
G CHAINSTAY LENGTH 430 430 430 430
H WHEELBASE 1009 1032 1054 1075
I FORK OFFSET 47/52 47/52 47/52 47/52
J TRAIL(28C) 73.7 73.7 73.7 73.7

Template (Multi-Cam is only applicable to A21, the other 3 templates can be used for any SERK model)

Discover more custom paint options in Colour Map.

Additional information

Frame Size

XS, S, M, L, XL, XXL

Frame Finish

Custom Paint ($500.00), Raw Ti

Seatpost

Carbon Seatpost ($100.00), Not Included

Brand

SERK

Brand Name: Serk Chinese Company Name: 北京速旷文化传播有限公司
Founded: 2011 # of Employees: -
Headquarters: Beijing Products Categories: Complete Bikes, Framesets

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