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All-City Big Block Bike

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When you buy a bike from Aventuron, not only will your bike ship for free, but you will receive a bike that is ready to ride out of the box.

We assemble and tune your bike, then repackage it to ship. When you receive your new bike it will be very easy to assemble. You will have to attach the front wheel, handlebar, seatpost and pedals. Most bikes do not include pedals, but we have an extensive pedal selection. We are a family-owned and operated business and look forward to having you as a customer.

The Big Block represents All-City's vision of the ideal track bike for everyday life. Take it to the streets or the boards. Wherever you ride it, the Big Block will hold up its end of the deal.
  • 612 Select chromoly steel with double-butted main triangle, tapered stays and brazed-on seat collar
  • 4130 Chromoly double butted fork with lugged crown and tapered blades
  • Velodrome legal track geometry
  • All-City Signature investment-cast stainless steel Hennepin Bridge track dropouts with built-in chain tensioner
  • E.D. coated for durability and rust prevention
  • Tire clearance: 700c x 32mm; 28mm with fenders

Frameset

Frame

612 Select Chromoly Steel

Fork

All-City Big Block Signature Fork

Drivetrain

Crankset

All-City 612 Track Crank, 165mm, 46t ring

Bottom Bracket

Square Taper, 68x110mm steel cups, sealed bearings

Front Derailleur

N/A

Rear Derailleur

N/A

Cassette / Cog

All-City standard, 17t

Chain

KMC, silver, 1/8"

Components

Grips / Bar Tape

Lock-On, Black

Handlebar

Kalloy 700mm Riser, polished silver

Stem

Kalloy 1-1/8" threadless, 31.8mm clamp

Headset

VP 1-1/8" threadless, polished silver

Front Shifter

N/A

Rear Shifter

N/A

Brake Levers

Tektro FL750, polished silver

Brakeset

Tektro R539, mid reach, front installed

Saddle

All-City Gonzo

Seatclamp

integrated

Seatpost

27.2mm, polished silver

Wheels

Front Hub

Fix/Free, 32h, polished silver

Rear Hub

Fix/Free, 32h, polished silver

Rims

Sun CR-18, 32h, Silver

Tires

Vittoria ZAFFIROS IV 700x 28c Steel Bead Black

Tubes

included

Other

Pedals

N/A

Misc

-

* Specifications are subject to change without notice

Frame measurements (mm) 46cm 49cm 52cm 55cm 58cm 61cm
A. BB Drop 58 58 58 58 58 58
B. Chainstay Length 396 396 396 396 396 396
C. Fork Length - Axle to Crown 375 375 375 375 375 375
D. Fork Offset 32 32 32 32 32 32
E. Head Tube Angle (deg) 75.5 74 73.5 73 72.5 75
F. Headtube Length 95 110 130 150 175 200
G. Reach 383.7 394.4 394.4 398.8 421.3 434.2
H. Seat Tube Angle (deg) 75 75 74.5 74.5 74.5 74.5
I. Seat Tube Length - Center to Top 460 490 520 550 580 610
J. Stack 508.8 524.6 545.3 566 590.2 615.9
K. Standover 750 772 796 821 847 874
L. Top Tube Length (Effective) 520 535 550 565 585 605
M. Wheelbase 945.5 956.8 963.2 973.9 993.9 1008.8
Component measurements (mm)
Crank Arm Length 165 165 165 165 165 165
Handlebar Width 700 700 700 700 700 700
Seatpost Offset 12 12 12 12 12 12
Stem Length 80 90 100 100 110 120

* All dimensions are preliminary and subject to change