SIGHT

ULTIMA RC PRO

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The top-of-the-line recurve sight, featuring every feature you’ve ever dreamed of.
ULTIMA RC PRO’s radically redesigned carbon extension redefines vibration elimination.

SHIBUYA ULTIMA RC PRO features

SHIBUYA ULTIMA RC PRO DOUBLE MOUNT features

Polygonal Carbon Extension【Patent pending】

ULTIMA RC PRO’s carbon extension features a radical new design redefining vibration elimination. The ultimate goal of eliminating vibration through the shape of the carbon extension lead us to a fishing pole taper shape. Through it, ULTIMA RC PRO is able to eliminate most of the unnecessary vibration on the shot. In simulations, the Polygonal Carbon Extension produces 87% less initial vibrations than the conventional shape. Additionally, SHIBUYA has applied the concept of “spine” to the extension, tailoring to a wide variety of archers’ desired shooting feel by including two different stiffnesses of the Polygonal Carbon Extension in the lineup. By targeting vibration not only through material, but also shape, ULTIMA RC PRO offers a shooting feel like never before.

ADVANCED LOCK MECHANISM

ULTIMA RC PRO features a brand-new mounting mechanism to achieve a more secure lock than ever.
By increasing the knob’s diameter, and maximizing the contact area with the carbon extension, ULTIMA RC PRO’s mount achieves a rattle-proof lock with less effort required than ever. Never worry about the knob coming loose again with this simple yet secure mounting system!

Sight Scale Plates

Both sides of ULTIMA RC PRO’s elevation bar feature metal sight scale plates. Each ULTIMA RC PRO includes a standard scale plate, as well as a blank plate for a printed tape. Left and right are interchangeable, to fit any archer’s preferred shooting style.

Redesigned Sight Pin Locker

ULTIMA RC PRO features a redesigned sight pin locker with a tool-less thumb screw. Enjoy an effortless shooting experience that not only improves usability, but cuts down on the time needed for adjustments by eliminating the hex wrench for adjustments.

Double Mount ＆ Minimized Elevation Bar

Introducing the double position mounting system. This revolutionary mount enabled us to reduce the elevation bar’s length to the absolute minimum, drastically reducing the sight’s target side weight. This weigt reduction results in the virtual elimination of vibration and shock upon the shot. The double mount ULTIMA PRO is the pinnacle of SHIBUYA’s focus on vibration reduction!

Spec Table

Type Single Mount
＋
520 Elevation		 Double Mount
＋
320 Elevation		 Double Mount
＋
250 Elevation
Extension Bar 9" Polygonal Carbon Extension Type：A or B
Extension Bar Type Type：A Type：A Type：A
Mass Weight 233g 221g 212g
Aperture Distance（APD） MAX 249mm　MIN 189mm
Elevation Adjustment Model Screw Drive with No-Lock Quick Adjust Function
Length 132mm（approx. 5.2"） 81.3mm（approx. 3.2"） 63.5mm（approx. 2.5"）
Adjustable Range 107mm 59.7mm 41.9mm
Adjustment Increments 1回転 1/24"（approx. 1mm）
1click 1/480"（approx. 0.05mm）
Tilt Adjustment available
Windage Adjustable Range 5.4mm
Adjustment Increments 1/32" per revolution（approx. 0.8mm）
1/640" per click（approx. 0.04mm）
Compatible No.8-32 threaded sight pins
Extension Length 225mm（approx. 9"）
Adjustable Range 2.4"（60mm）
Adjustable Increments 0.5"（12.7mm）
Material Elevation 6000 series aluminum alloy
Windage Unit 6000 series aluminum alloy
Extension Carbon Fiber
Colors Black・Silver・Blue・Red Black・Silver・Blue・Red Black
RH/LH available
Release Date 2020年
Included Accessories Soft Sight Case
No.10-24 mount screws
Hex Wrenches 1.5㎜／2.5㎜／3㎜
Blank sight tape
Instructions Sheet
Separately available options 220 Elevation Bar
Part Assembly Diagram
Part List

ULTIMA RC PRO

Product development

ULTIMA RC PRO’s development started with one goal: Develop a sight with as little vibration as possible.
SHIBUYA started manufacturing sights over 45 years ago, in 1975. With all our sights, we have approached the issue of vibration reduction via selection of materials and weight. However, many modern sights are already utilizing carbon and similar materials that excel in damping vibrations.
That’s why we decided to take a different approach with the ULTIMA RC PRO: By radically changing the extension’s shape.

After multiple experiments, we arrived at a tapered shape reminiscent of a fishing pole, which achieved a vibration reduction of 80% in simulations. Through multiple stages of prototyping and testing with world-class archers, we arrived at the final shape of the ULTIMA Polygonal Extension.
Even with the finalized shape, we found that it was difficult to provide all testing athletes with the ideal shooting feel, thus we decided to offer different “spine” options. With the help of Olympic Medalists, we narrowed down the many prototype extensions to two final types.
Through this process, the ULTIMA Polygonal Extension was born, which we are confident is the most advanced carbon extension bar ever made.

Finally, in addition to the extension’s shape, it was essential to reduce the mass weight at the front end of the sight. To achieve this, we selected to use a double mount system with a drastically reduced elevation length. This concept was previously realized in 1979 with the record-setting SHIBUYA AR-10 sight, and has made its return to the archery scene in style, again claiming medals at the highest level of Recurve competition.

ULTIMA RC PRO

ULTIMA RC PRO DOUBLE MOUNT

＼ VOICE ／

It’s dead quiet.

I was shocked by the vibration of my old sight after trying the ULTIMA RC PRO.

It’s nice to try something and find that the selling points make a noticeable difference.

[The Double Mount sight] feels like there’s no sight on my bow at all.

Real innovation.