SKU: 54020176530

Sakae/Ringyo (SR) Royal (LA-5) NOS Vintage 53T 144 BCD Outer Chainring

Sale price$54.90 Regular price$61.00
Save 10%

Pay in installments of $15.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Sakae/Ringyo (SR) Royal (LA-5) NOS Vintage 53T 144 BCD Outer ChainringOriginal part in production from the 1970s to the 1980s New old stock! Still unused after all these years Suitable for historic cycling events such as L'Eroica Worldwide shipping Sakae Ringyo (SR) Royal chainring (or chainwheel if you prefer), hailing from Japan and in production from the 1970s to the 1980s (yet still new & unused after all this time!). Made from aluminium and weighing in at 104 grams. A fine choice for keeping your vintage bike

✓ Original part - in production from the 1970s to the 1980s
✓ New old stock! Still unused after all these years
✓ Suitable for historic cycling events such as L'Eroica
✓ Worldwide shipping

Sakae/Ringyo (SR) Royal chainring (or chainwheel if you prefer), hailing from Japan and in production from the 1970s to the 1980s (yet still new & unused after all this time!). Made from aluminium and weighing in at 104 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike.

If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!

OVERVIEW


Condition - New Old Stock*
Model ID - LA-5
Production Era - 1970s & 1980s
Country - Japanese
Material - Aluminium
Weight - 104 g
Stock Code - D-CRO61V

*New old stock items may have marks from storage over the years, and as we often have multiples they can vary from piece to piece, but they are always genuine new & unused items.

TECHNICAL INFO


Tooth Count - 53
Between Adjacent Bolt Holes - 84.6 mm
BCD - 144 BCD
Bolt Count - 5-Bolt
Chain Width - 3/32" (Standard)
Intended Speed* - 5 Speed, 6 Speed, 7 Speed

SHIPPING, TAXES & RETURNS

We've been safely sending orders around the world since 2010. There's a handy shipping calculator on the shopping cart page so you can see the cost of postage as soon as you've added it to your basket. Your order will be carefully packed and sent with tracking & insurance, we despatch most orders within 2-3 days but larger items and orders placed before the weekend can take an extra day or two to process.

We accept returns, please notify us within 14 days and ensure the item arrives back with us no later than 30 days after the order was received.

EU Customers – for orders under €150 (excluding shipping), VAT will be collected at checkout, but from 1st July 2026, due to new EU import regulations, there may also be a customs duty payable to the carrier. For orders over €150, all import fees will be payable to the carrier, with nothing collected at checkout.

USA Customers – import fees are now collected at checkout for all orders to the US, so there won’t be any surprise charges when your order arrives.

Other International Customers – local import fees may still apply, charged by your customs office or courier before delivery. These are not collected by us, so please check your local rates before purchasing.

Any applicable fees will appear at checkout.

HELP SECTION

Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.

Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.

BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).

Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.

Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.

Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54020176530

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 7 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Clinton Queen
Grantham, US
★★★★★ 5
Great product for plant workers
Style: 220 Lumens
Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2025
K
Verified Purchase
Karen T. Duncan
Draper, US
★★★★★ 4
Good light. Minor flaws.
Style: 180 Lumens
Good light, only flaws is that it didn't come in a box. It was just in a clear plastic bag. And batteries were not included.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2024
G
Verified Purchase
Glen B.
Battle Creek, US
★★★★★ 5
Puts out a lot of light!
Style: 220 Lumens
I had to have an explosion proof light, and this one puts out an amazing amount of light! On flood light ( second push of button) it lights up an amazing amount of area around you. The spotlight will hit a tree in my back yard while standing in the front yard. Very impressive!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Intrinsically safe
Style: 250 Lumens
Works great and is hazardous environment safe
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 14, 2025
K
Verified Purchase
Krylos
Los Angeles, US
★★★★★ 5
Very useful if you don't want to explode!
Style: 90 Lumens
Found the unit a bit difficult to adjust on the hard hat but got it dial in eventually. Also impacted by the need to mount goggles on the helmet, that might be rare, but this was my situation working around chemicals. nice and bright. batteries last a couple of days with intermittent use approx. 3.5hrs a day. A bit of a pain to unscrew the cover on batteries but that's the nature of the beast to make sure no sparks escape. Would highly recommend the product. Most other comparable products are around double the price. BTW, the packaging looked like the driver dropped it on the road and ran over it a couple times...but it still worked. UPDATE #1: After a few months of usage, the height adjustment is starting to fail. As I walk, the light begins to droop until it's shining down in front of me. Dissappointed that the adjustment didn't last longer. I might be able to discover a way to lock it back in, but have not taken the time to examine the mechanism yet. UPDATE #2 9-2018: The adjustment problem has now reach its ultimate end. The hinge on bottom has basically disintegrated. Now, when I put batteries in and tighten the screw, the bottom hinge pops loose. The product is no longer usable. The hinge is just cheap plastic, that is a shame, I kind of expected better from nightstick. However, it still seems to be the best option vs. price available so I am planning to order it again. Hope I can get 3 years of intermittent use out of the next one. I do really like it when it is working...lite and bright.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 6, 2015

recommand products