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Item # ORB0050

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Item # ORB0050

Description

With women generally being shorter than men and having shorter torsos and arms with relation to their total height, Orbea builds the Orca Dama Bronze with a few angles and measurements tailored to optimize the fit. And since it’s built with Orbea’s Bronze grade carbon fiber, it optimizes the cost as well.

Please note that the top tube lengths are a shorter here on the Orca Dama than they are on the men’s version, even though both bikes are available in 51 and 53cm sizes. This allows you to reach the bars more easily without feeling over-stretched. The Dama frames also feature a slacker head angle and corresponding fork offset. The reason is to lengthen the distance between the bottom bracket and the front hub. This reduces the chance for toe overlap when you steer the bike at low speeds, increasing your comfort and safety.

The frame and fork are built with a blend of intermediate modulus fibers that have a touch more elasticity than the higher modulus fibers in the Gold and Silver Orcas. That the intermediate fibers also create a more durable frame is an added bonus for those looking at their first carbon fiber bicycle. If you’re looking towards an upgrade from aluminum, but have concerns about the lifespan of a composite bicycle, be aware that this Orca Bronze is likely more crashproof than a thin-walled alloy frame. And we’re certain that it’s ultimately more repairable if the unthinkable occurs. But the real benefit of carbon fiber is the silky smooth ride. It absorbs high frequency vibrations from coarse road surfaces better than aluminum or steel frames.

Like the Gold and Silver, Orbea molds the Orca Bronze frame and fork as a monocoque. Each of these is a homogenous structure with fibers running continuously along the length of the tubes and through the intersections. This increases the total strength of the bike along with the durability. There are a few structural differences that separate the Orca Bronze. It uses alloy dropouts. They’re a few grams heavier than the full-carbon dropouts of the more expensive models, but they’re also more apt to endure repeated ham-fisted wheel insertions. The seat tube here is round where the Gold and Silver have a more sculpted, aero shape. This allows the use of a less expensive, standard round seatpost and conventional clamp assembly.

Otherwise the front triangle uses the same planar styling as the other Orca models. And the tube shaping isn’t all about good looks. The angular tube shapes and sometimes pronounced edges are the result of FEA (finite element analysis) and their intent to create resistance to flex in critical areas like the bottom bracket, seat tube, and head tube junction. Orbea uses what they term as SSN (size specific nerve) technology to produce frames that offer the same comfort and performance characteristics across the size range. More specifically, each frame size has specific carbon lay-ups and tube dimensions.

The Orca Bronze also uses a BB30 bottom bracket and a tapered head tube. Both of these details add performance by increasing stiffness where it counts. At the bottom bracket, you’ll enjoy a 30% stiffer and lighter aluminum spindle compared to standard external bearing cranksets. Another benefit is the increased heel and ankle clearance. Do you wear out the inside surfaces of your cycling shoes against the crankarms? If you answered yes, BB30 is for you. And if you already have a typical crankset, you can easily adapt it to fit the BB30 shell, no problem. The tapered head tube allows the use of a 1.5” lower bearing. The increased inside diameter of the bearing allows the carbon fiber steerer tube to be oversized as well. This increases the torsional and bending stiffness. This is a big part of what makes the Orca feel rock solid on high speed descents and through tight corners.

The Orbea Orca Dama Bronze is available in Carbon/purple or White/carbon/silver and comes in four tailored sizes from 47cm to 53cm. It comes with a matching Orca tapered monocoque carbon fork and integrated FSA headset. The Orca requires a braze-on front derailleur. All Orbea bicycle frames come with a lifetime warranty against manufacturing defect.

sizing chart

Bike size by rider height

|

Geometry chart

Fuji Bicycles

 

Geometry Chart

 

Altamira LTD
 

Seat Tube

(c-t)

Effective Top Tube

(eTT)

Stack

(S)

Reach

(R)

Standover

(SO)

Head Tube

(HT)

Head Tube Angle

(HTo)

Seat Tube Angle

(STo)

Bottom Bracket Drop

(BBD)

Chainstay Length

(CS)

Wheelbase

44 44.0cm 51.5cm

51.7cm

36.3cm 72.1cm

12.0cm

72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm

52.8cm

37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm

101.0cm

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