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2017 Santa Cruz Bicycles Bronson 2.0 Alloy Frame

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2017 Santa Cruz Bicycles Bronson 2.0 Alloy Frame

 

While 2016’s 2.0 reboot made the Bronson leaner, meaner, and even more capable than its 1.0 predecessor, those of us with less than unlimited finances were still left to dream of a day when we could afford to add one of those beautiful machines to our stable. Fortunately, Santa Cruz marks 2017 with the release of the Bronson 2.0 Alloy Frame, which features that same much-loved geometry found in its high-cost carbon fiber kin and a much more attainable price point that looks to see even more Bronsons headed to the dirt.

Of the 2.0 updates, arguably the most impressive alteration to the old Bronson’s all-mountain pedigree is the head tube, which slacks out by an extra tick on the protractor to drop from 67 to 66 degrees. This change is complemented with a corresponding increase in top tube length, a lower bottom bracket, and a raised lower link — a combination that allows for short-stemmed, strike-free, point-and-click confidence while traversing lines and dropping steps that would cause even the previous Bronson to hesitate. It also effectively erases root lattices and moderate rock gutters, letting you mash across terrain that trail, XC, and even other all-mountain bikes have to pick through with delicate care.

Compared to the 1.0 version, the Bronson 2.0’s seat tube gets steeper by almost a full degree for better positioning 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 efficient power transfer. The back end is further stiffened with the 12 x 148mm Boost 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 configuration helps the Bronson 2.0 pop over cruxes and maintain speed across hard pack.

The VPP suspension system represents the latest update to Santa Cruz’s classic VPP. Where the old suspension curve described a deep “U,” the new curve resembles a flattened check mark, with less dramatic ramping on either end of the arc. The results are that, during the initial stroke, VPP boasts increased small bump compliance to keep the tires glued to the trail for more traction while climbing 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. The 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 when the bottom link activates and the axle’s path turns rearward to absorb big hits in the deep end of the travel pool.

Despite the expansive list of changes and new frame material, most of the impeccable details that we’ve come to associate with the clean lines and understated aesthetics of Santa Cruz frames carry over, including down tube and chainstay protectors and a 73mm threaded bottom bracket shell. In comparison to its carbon counterparts, the aluminum Bronson 2.0 ditches ISCG tabs and features an integrated headset, which helps reduce overall weight and minimize the difference between materials.

Hard-charging all-mountain machine with 150mm of VPP suspension

Aluminum construction lowers the price tag

Updated geometry is slacker, lower, and longer in the front

Boost thru-axle increases stiffness and improves tracking

Santa Cruz blends cutting-edge tech with timeless style

 

2017 Santa Cruz Bicycles Bronson 2.0 Alloy Frame

Frame Material:

aluminum

Suspension:

VPP

Wheel Size:

27.5 in

Rear Shock:

Rock Shox Monarch RT

Rear Travel:

150 mm

Head Tube Diameter:

1-1/8 – 1-1/2in mixed tapered

Bottom Bracket Type:

73mm threaded

ISCG Tabs:

no

Cable Routing:

internal

Front Derailleur Mount:

direct-mount

Brake Type:

disc

Seatpost Diameter:

31.6 mm

Rear Axle:

12 x 148mm Boost

Recommended Use:

all-mountain, enduro

Manufacturer Warranty:

lifetime

Actual Weight:

Matte Black/Blue, M: 3540g

 

2017 Santa Cruz Bicycles Bronson 2.0 Alloy Frame

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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