SKU: 90114926574

Renthal RR4 520-120L Chain Race

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Description

Renthal RR4 520-120L Chain RaceRenthal RR4 is a highly specialised lightweight 520 sealed ring chain developed exclusively for Sportbike racing applications where a combination of lightweight and race durability are critical. The RR4 chain with 520 racing sprockets is a great way to enhance your motorcycle's trackday performance. Utilising Self Regulating Seal (SRS) technology to increase service life. The specially developed Self Regulating Seal (SRS) ring is preloaded during

Renthal® RR4 is a highly specialised lightweight 520 sealed ring chain developed exclusively for Sportbike racing applications where a combination of lightweight and race durability are critical.

The RR4 chain with 520 racing sprockets is a great way to enhance your motorcycle's trackday performance.

Utilising Self-Regulating Seal (SRS™) technology to increase service life. The specially developed Self Regulating Seal (SRS™) ring is preloaded during assembly creating a spring effect.

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SKU: 90114926574

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4.7 ★★★★★
Based on 15 reviews
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Verified Purchase
Skyddidy
San Leandro, US
★★★★★ 5
Answers Many Questions about Naval Developments
Format: Hardcover
The history offers a detailed and well organized account of the Royal Navy as it transitioned from sail to steam. Coverage included personalities, technology, tactics and strategy. The combination provided a complete appreciation of the dynamics at play, some unexpectedly. The details might be a bit much for a casual reader but offered plenty of avenues for research not available or compiled in one source. I look forward to the final volume, which should describe another watershed era.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
K
Verified Purchase
KENT ERICKSON
Belleville, US
★★★★★ 5
Great Book with a different perspective
Format: Hardcover
This will be a short review of a very long book. I ordered the book expecting more of a history of the British Navy, but this is more of a history of Britain with respect to its navy. It is still excellent and authoritative, just different than I expected. I really appreciate a somewhat different perspective than I have found in some other books. For example, any discussion of Jackie Fisher I have read previously seemed to border on the hagiographic, whereas here he seems to get a very evenhanded appraisal. A great book, highly recommended.
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Reviewed in the United States on November 17, 2025
D
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Donna
Battle Creek, US
★★★★★ 5
Great read about naval history
Format: Hardcover
Great book completing a Trilogy ofBritish Naval history. Great read!
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Reviewed in the United States on July 11, 2025
J
Verified Purchase
Jeffrey A. Ribner
Massapequa, US
★★★★★ 5
Magisterial
Format: Hardcover
Magisterial. A superb scholar at work and well written The sections on World War Two are a critical masterpiece
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Reviewed in the United States on January 19, 2026
A
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Adrianna Randall
Lexington, US
★★★★★ 4
The Details of the Height of British Naval Power
Format: Hardcover
This is the final volume in Rodger's three part series. This coves a lot of ground that includes Britain's height of imperial/naval hegemony and then its exhaustion after two world wars. Read this book if you want to learn about the details that actually go into an important national organization like the Royal Navy. Things like politics, administration, logistics, ship design, talent pipelines, engineering difficulties, etc. Rodgers goes deep. Things like: 1) Fire control on big guns on warships is a very hard technical challenge and wasn't really solved until the 2nd World War with more advanced electronics. 2) In the coal fired age of ships, most of the navy were coal stokers. The limit of range was actually their exhaustion, not how much coal was on board. 3) Twice the number of bombs were dropped on Malta in WW2 as on London during the Blitz! 4) Britain's naval dominance was tied to economic dominance and was sea power/trading based. Sea based trade is so powerful and economical that it was cheaper to ship a ton of coal by sea than train within Britain itself! 5) Britain had a monopoly over undersea cables for global communications. They used this as a weapon to spy on enemy communications and to cut off others access to the network. Sound familiar to the SWIFT banky network today? 6) Welsh coal was the best coal. So good that the Austo-Hungarian navy stockpiled before the war enough that they used it exclusively throughout WW1.
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Reviewed in the United States on November 16, 2025

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