ULTIMA RC PRO
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】
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
Redesigned Sight Pin Locker
Double Mount ＆ Minimized Elevation Bar
|Extension Bar||9" Polygonal Carbon Extension Type：A or B|
|Extension Bar Type||Type：A||Type：A||Type：A|
|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"）|
|Adjustment Increments||1回転 1/24"（approx. 1mm）|
|1click 1/480"（approx. 0.05mm）|
|Adjustment Increments||1/32" per revolution（approx. 0.8mm）|
|1/640" per click（approx. 0.04mm）|
|Compatible||No.8-32 threaded sight pins|
|Material||Elevation||6000 series aluminum alloy|
|Windage Unit||6000 series aluminum alloy|
|Included Accessories||Soft Sight Case
No.10-24 mount screws
Hex Wrenches 1.5㎜／2.5㎜／3㎜
Blank sight tape
|Separately available options||220 Elevation Bar|
ULTIMA RC PRO
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.