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Santa Cruz Bicycles Bronson Carbon CC X01 Eagle Complete Mountain Bike - 2017

Santa Cruz Bicycles Bronson Carbon CC X01 Eagle Complete Mountain Bike - 2017
Sale $4,799.95$6,799.00 29% Off

Item # SNZ00GC

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  • Matte Black/Blue, M ($4,799.95)
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Item # SNZ00GC

Description

All-mountain clarity.

When we look back over the past several years, it's clear that a few trends have come to define the mountain bike industry: longer, slacker geometries, Boost hubs, one-by drivetrains, and mid-sized tires—largely because of the ride-enhancing benefits that each innovation brings to a day of flowy runs. These innovations dropped fast, though, leaving a lot of manufacturers unable to include them all in a single bike. So we took matters into our own hands, building the Santa Cruz Bronson 2.0 Carbon CC X01 Eagle Complete Mountain Bike to take advantage of all of them. It's an enduro sled that, thanks to SC's peerless Carbon CC layup and eminently pedal-able VPP suspensions, is almost as happy to climb as it is to shred.

The Bronson went through an impressive list of changes while evolving to the current 2.0 model. While that list is long, the headline is definitely the head tube, which slacks out by an extra tick on the protractor, dropping from 67 to 66 degrees. This change is complemented with a corresponding increase in top tube length, 150mm of dropper range, a lower bottom bracket, and a raised lower link—a combination that allows for short-stemmed, strike-free, point-and-click confidence while traversing terrain that would cause even the previous Bronson to hesitate. The Bronson 2.0 allows for lines that are bigger, steps that are droppier, and it effectively erases the rooty terrain that trail, XC, and even other all-mountain bikes have to pick through with delicate care.

The Bronson 2.0's seat tube moves in the opposite direction of the head tube, getting steeper by almost a full degree in order to position the engine (read: your hips) up over the cranks. The revised geometry keeps you on top of the pedal stroke, and relocated links allow for a shorter chainstay, which makes for more power transferring efficiency. The back end is finished with the new 12 x 148mm axle standard, ensuring that the extra watts produced by the improved pedaling position and shorter chainstays aren't lost to wheel flex. Despite its slacker head tube and longer geometry, the back end changes help the Bronson 2.0 pop over cruxes and maintain diesel speed across hard pack.

The Bronson 2.0's two triangles are connected by the latest update to Santa Cruz's classic VPP suspension. Where the old suspension curve described a deep "U," VPP's curve now resembles a flattened check mark, with less dramatic ramping on either end of the arc. The results are that, during the initial stroke, VPP now boasts increased small bump compliance to keep the tires glued for more traction across lumpy trails and root lattices. It also maintains its predecessor's firm feel during accelerations while jockeying for position in a mass start or a finishing sprint. When paired with FOX's Evol air can, the a ramp-up arc doesn't dramatically alter as the shock compresses, so the pedaling platform stays consistent across travel, with less wallowing, bob, and bottom-outs—even while the axle's path turns rearward to absorb big hits as travel increases.

For all the changes to its shape, the Bronson 2.0 Carbon CC's construction remains unchanged. As with previous Carbon CC frames, it requires less material to hit Santa Cruz's stiffness targets without sacrificing any of the responsiveness of the less expensive, heavier Carbon C models. Both triangles are constructed as whole, monocoque pieces, which also contributes to keeping weight low because the carbon can be wrapped through junctures and around joints. This eliminates the artificial weak points of bonded frames and actually requires less material in the process. While it's being cured, the frame is compacted from inside and out. This final step virtually eliminates any excess material and resin pooling, resulting in more structural integrity and, of course, additional weight savings.

One final frame note bears mention: the inclusion of an English threaded bottom bracket. Whether it's on the trail—where abuse can pile up—or on the road—where even the slightest creak can poison an otherwise perfect ride—we can't say enough about the benefits of threaded bottom brackets. They're easy to use, they require less babysitting, and they're quieter. That's because not even the experts responsible for SC's Carbon CC build are able to lay material up with the precision of CNC-machined aluminum, so the tolerances are much more precise on threaded bottom brackets than on press-fit. As the intro paragraph points out, we love innovation in the bike industry, but some things are already as near to perfect as they're likely to get.

As for the build, we a SRAM Eagle X01 base because it's futureproof and nigh indestructible. SRAM's mountain kit has a strong reputation for durability built on years spent eagerly gobbling up abuse that would make Japanese drivetrains wilt, and the advent of one-by means that there's one less finnicky bit to worry about smashing on rocks or trees. We round the build off with a Race Face/WTB cockpit and some 2.4in Conti Mountain Kings, completing a build kit that's every bit as trail-hungry as the Bronson 2.0's new geometry.

  • A flow-happy machine that we spec'd for enduro abuse
  • 6in of VPP suspension for plush descending
  • Aggressive geometry is slack with ample cockpit room
  • Stem length keeps handling fresh despite the long, slack geometry
  • CC-level carbon frame is ultra-stiff and lightweight
  • Mid-sized tires increase traction, efficiency, and cushion
  • Boost hubs further increase stiffness and precise tracking
  • SRAM's most versatile one-by drivetrain is built for the self-sponsored racer

Tech Specs

Frame Material:
Carbon CC
Suspension:
VPP
Rear Shock:
RockShox Monarch Plus RT3
Rear Travel:
150mm
Fork:
FOX Racing Shox 34 Float 3Pos-Adj FIT4
Front Travel:
150mm
Headset:
Cane Creek 40 Series
Shifters:
SRAM X01 Eagle
Front Derailleur:
n/a
Rear Derailleur:
SRAM X01 Eagle
ISCG Tabs:
yes, ISCG 05
Crankset:
30t SRAM Descendent Carbon
Bottom Bracket:
SRAM GXP
Crank Arm Length:
175mm
Cassette:
10 - 50t SRAM Eagle XG-1295
Chain:
SRAM X01 Eagle
Brakeset:
SRAM Guide RSC
Brake Type:
hydraulic disc
Rotors:
SRAM Centerline Rounded
Handlebar:
Race Face Aeffect R 35
Handlebar Rise:
20mm
Handlebar Width:
780mm
Grips:
Lizard Skins Moab lock-on
Stem:
Race Face Aeffect R 35
Stem Length:
50mm
Saddle:
WTB Volt Comp
Seatpost:
125mm Race Face Turbine Dropper
Seatpost Diameter:
31.6mm
Wheelset:
Race Face Aeffect R
Front Axle:
15 x 110mm Boost
Rear Axle:
12 x 148mm Boost
Tires:
Continental Mountain King
Tire Size:
27.5 x 2.4in
Pedals:
not included
Recommended Use:
enduro
Manufacturer Warranty:
lifetime on frame

Geometry Chart

Santa Cruz

Geometry Chart

 

Bronson 2.0
 

Seat Tube

(c-t)

Effective Top Tube

(eTT)

Stack

(S)

Reach

(R)

Stand Over

Head Tube

(HT)

Head Tube Angle

(HTo)

Seat Tube Angle

(STo)

Bottom Bracket Height

(BBH)

Chainstay

(CS)

Wheelbase
S 15.5in 22.5in 23.1in 16in 28.6in 3.5in 66o 74o 13.4in 17in 44.9in
M 16.5in 23.4in 23.4in 16.7in 28.8in 3.9in 66o 74o 13.4in 17in 45.8in
L 18.1in 24.3in 23.8in 17.5in 28.9in 4.3in 66o 74o 13.4in 17in 46.8in
XL 19.5in 25.6in 24.2in 18.7in 29.4in 4.7in 66o 74o 13.4in 17in 48.1in

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