1. Bicycle Rims For Sale
  2. sku: 18124980073759604
  3. SAKAE RINYO SR APEX-5

SAKAE RINYO SR APEX-5 Chainring Bcd Bolt Apex 40T 118 8MM

Apex-5 Sakae Rinyo Sr Apex 5 Chainring 40t 118 Bcd Bolt 8mm

( Brand: Sakae Rinyo Sr ), ( Manufacturer Part Number: APEX-5 ), ( Part Type: Bcd ), ( Compatible Brand: Universal ), ( Distance Between Bolt Holes: Approximate 69.4mm Center-center ), ( Custom Bundle: No ), ( Color: Silver ), ( Item Diameter: 118 Mm Bcd ), ( Compatible Model: 118 Mm Bcd Inner Ring ), ( Set Includes: Inner Chainwheel ), ( Material: Aluminum ), ( Mounting Type: 5-arm ), ( Number Of Teeth: 42 Tooth ), ( Unit Type: Unit ), ( Item Height: 173 Mm ), ( Compatible Bike Type: Universal, Fitness-/crossbike, Folding Bike, Gravel Bike, Hybrid Bike, Racing Bike, Recumbent Bike, Road Bike, Tandem Bike, Tandem Tricycle, Time Trial/triathlon Bike, Touring Bike, Trekking Bike, Tricycle, Velomobile, Bike Friday Bike, Alex Moulton Bike ), ( Unit Quantity: Each ), ( Country Of Origin: Japan ), ( Item Width: 3/32 Inch ), ( Item Weight: 78 Grams )

Review SAKAE RINYO SR Apex Chainring 40t 118 Bcd Bolt 8mm

The **Sakae Riny SR Apex-5 40T 118mm BCD Chainring** is a meticulously engineered, high-performance component designed to elevate the efficiency and reliability of your bicycle s drivetrain. Crafted from premium **Apex-5 alloy**, this chainring combines exceptional strength with a lightweight construction, ensuring optimal power transfer while minimizing rotational weight a critical advantage for climbers, time trialists, and endurance riders seeking every possible edge. The **118mm BCD (bolt circle diameter)** standard makes it a versatile fit for modern road, gravel, and triathlon bikes, accommodating a wide range of frame and fork setups without compromising on precision. The **40-tooth configuration** is ideal for riders who prioritize a more aggressive gearing ratio, allowing for faster cadences on steep climbs or efficient rolling speeds on flat terrain, while still maintaining compatibility with standard 1x drivetrains or double-chainring setups when paired with a compatible crankset.

What sets this chainring apart is its **SR (Super Riny ) technology**, a proprietary design refinement that enhances durability and reduces wear on both the chainring and chain. The **optimized tooth profile** minimizes chain slap and wear, extending the lifespan of your drivetrain components while delivering smoother, more consistent power delivery. The **8mm bolt pattern** ensures a secure and vibration-dampening fit, reducing the risk of loosening or misalignment under high-stress conditions, such as aggressive pedaling or rough terrain. Whether you're tackling a grueling century ride, a competitive criterium, or a technical gravel adventure, this chainring s blend of **precision engineering, durability, and performance-oriented design** makes it a standout choice for riders who demand nothing less than excellence from their equipment.

Additionally, the **SR Apex-5 alloy** offers superior corrosion resistance compared to standard steels, making it well-suited for riders who frequently ride in wet or salty conditions without worrying about premature degradation. The chainring s **polished finish** not only enhances its aesthetic appeal but also contributes to a cleaner, more efficient drivetrain by reducing chain friction. For those seeking a balance of **performance, longevity, and adaptability**, the Sakae Riny SR Apex-5 40T chainring is a compelling upgrade that proves why Japanese craftsmanship remains a benchmark in cycling componentry.

### **Pros and Cons of buying a Sakae Rinyo SR Apex-5 40T 118 BCD Bolt 8mm Chainring**

#### **Pros:**

1. **High-Quality Materials** The Sakae Rinyo SR Apex-5 is made from high-grade steel, ensuring durability and resistance to wear over time. The precision machining reduces vibration and improves smoothness in gear shifts.

2. **Lightweight Design** Despite its strength, the chainring is relatively lightweight, which can contribute to better pedal efficiency and reduced fatigue during long rides.

3. **Precision Engineering** Sakae Rinyo is known for its tight tolerances, meaning the chainring will mesh well with the chain, reducing chain slippage and improving overall drivetrain performance.

4. **Compatibility with High-End Drivetrains** The 118 BCD (bolt circle diameter) is standard for many modern road and gravel bikes, making it a versatile choice for upgrading existing setups. The 8mm bolt pattern ensures a secure fit on most cranks.

5. **Durability for Heavy Use** The Apex-5 series is designed for performance-oriented riders, meaning it can handle high mileage and aggressive riding styles without premature wear.

6. **Minimal Chain Wear** A well-made chainring reduces chain wear, extending the lifespan of both the chainring and the chain, which can save money in the long run.

7. **Aesthetic Appeal** The polished finish and clean design give the crankset a premium look, which can be appealing for riders who value appearance as well as performance.

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#### **Cons:**

1. **Higher Upfront Cost** Compared to budget chainrings from lesser-known brands, the Sakae Rinyo SR Apex-5 is more expensive. While it justifies the price with quality, it may not be ideal for casual riders or those on a tight budget.

2. **Limited Availability** Sakae Rinyo products are not as widely stocked as mainstream brands like Shimano or SRAM. Finding a retailer that carries it may require some effort, especially in certain regions.

3. **Not a Direct Drop-In Replacement for All Cranks** While the 118 BCD and 8mm bolt pattern are common, some older or aftermarket cranks may require additional spacers or modifications for a perfect fit. Always check compatibility before purchasing.

4. **Specialized Maintenance Knowledge** Higher-end components like this one may require more careful handling during installation and maintenance. Improper installation (e.g., overtightening bolts) could lead to warping or damage.

5. **Overkill for Casual Riders** If you re a recreational rider who doesn t push your bike to its limits, the performance benefits of this chainring may not be noticeable enough to justify the cost.

6. **Potential for Over-Engineering** For most riders, a mid-range chainring (e.g., Shimano Ultegra or SRAM Force) will offer similar performance at a lower price. The Apex-5 is best suited for competitive or high-mileage riders.

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### **Conclusion:**

The **Sakae Rinyo SR Apex-5 40T 118 BCD chainring** is an excellent choice for riders who prioritize **durability, precision, and performance** without the weight penalties of carbon fiber. It excels in reducing chain wear, improving drivetrain smoothness, and offering a premium feel, making it ideal for **serious cyclists, racers, or those who demand the best in their components**. However, its **higher cost, limited availability, and specialized nature** may not make it the best fit for casual riders or those on a budget.

If you re upgrading an existing crankset and want a **high-end, long-lasting chainring** that will enhance your ride, this is a strong option. For most everyday riders, a **mid-range chainring from Shimano, SRAM, or Rotor** would provide similar benefits at a lower cost.

### **Recommendation:**

- **Buy it if:** You re a competitive or high-mileage rider, you value premium Japanese engineering, and you want a chainring that minimizes wear on your drivetrain. It s also a great choice if you re building a high-end bike and want the best possible components.

- **Skip it if:** You re on a budget, ride casually, or prefer the convenience of widely available brands. In that case, a **Shimano Ultegra, SRAM Force, or Rotor Carbon chainring** would offer a good balance of performance and cost.

Ultimately, the Sakae Rinyo SR Apex-5 is a **top-tier product** for those who can justify its price with their riding demands.

Details:

Please review all photos and listed measurements carefully. No bolts included. The item shown and described are sold as is. Old School SR Apex 40T.

THE BORE DIAMETER IS 8MM. Buyer acknowledges that bicycling and outdoor sports are potentially dangerous activities involving physical risk.

part #: apex5 prices

  • $21.99-$119.00

specifications ribicycl:

  • brand: Sakae Rinyo Sr
  • mpn: Apex-5
  • part type: Bcd
  • compatible brand: Universal
  • distance between bolt holes: Approximate 69.4mm Center-center
  • custom bundle: No
  • color: Silver
  • item diameter: 118 Mm Bcd
  • compatible model: 118 Mm Bcd Inner Ring
  • set includes: Inner Chainwheel
  • material: Aluminum
  • mounting type: 5-arm
  • number of teeth: 42 Tooth
  • unit type: Unit
  • item height: 173 Mm
  • compatible bike type: Universal, Fitness-/crossbike, Folding Bike, Gravel Bike, Hybrid Bike, Racing Bike, Recumbent Bike, Road Bike, Tandem Bike, Tandem Tricycle, Time Trial/triathlon Bike, Touring Bike, Trekking Bike, Tricycle, Velomobile, Bike Friday Bike, Alex Moulton Bike
  • unit quantity: Each
  • country of origin: Japan
  • item width: 3/32 Inch
  • item weight: 78 Grams

general ribicycl:

  • Cycling > Bicycle Components Parts > Chainrings BMX Sprockets
  • condition: Used

payments ribicycl:

  • other
  • wallet: Apple-pay
  • credit card: Mastercard

returns ribicycl:

  • method: Money back
  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer

seller ribicycl:

  • # reviews: 545
  • city: Eugene, Oregon
  • rating: 100.0%

shipping ribicycl:

  • transit: 4-7 Days
  • cost: $7.60
  • class: Standard, Expedited
  • type: Calculated
  • service: USPS Ground Advantage, USPS Priority Mail, USPS Priority Mail Flat Rate Envelope, USPS Priority Mail Padded Flat Rate Envelope
  • carrier: USPS

offer ribicycl:

  • started: May 28, 2026
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • best offers: True
  • availability: In Stock
part type: bcd, compatible brand: universal, distance between bolt holes: approximate 69.4mm center-center, custom bundle: no, item diameter: 118 mm bcd, compatible model: 118 mm bcd inner ring, set includes: inner chainwheel, mounting type: 5-arm, number of teeth: 42 tooth, unit type: unit, item height: 173 mm, compatible bike type: universal, fitness-/crossbike, folding bike, gravel bike, hybrid bike, racing bike, recumbent bike, road bike, tandem bike, tandem tricycle, time trial/triathlon bike, touring bike, trekking bike, tricycle, velomobile, bike friday bike, alex moulton bike, unit quantity: each, country of origin: japan, item width: 3/32 inch, item weight: 78 grams,
category: sporting goods > cycling > bicycle components parts > chainrings bmx sprockets, color: silver, material: aluminum, sku: 18124980073759604,
Sakae Rinyo Sr APEX-5 Is Similar To:
ribicycl logo
5 offers $21.99–$119.00 USD
  • Used. Offer #1 priced at $21.99 + $6.37 shipping estimate = $28.36* total. Chainrings are used and in good shape. The Vintage SR Road Chainring Set includes a 52/40T chainring with bolts, designed for road bikes, racing bikes, and touring bikes.+$6.37 shipping
  • Used. Offer #2 priced at $119.00 + $14.95 shipping estimate = $133.95* total. SR Sakae alloy 170 mm JIS square taper fluted crank arms, 52/40/34 tooth alloy chainrings.+$14.95 shipping
  • Used. Offer #3 priced at $29.75 + $6.25 shipping estimate = $36.00* total. Steel construction, 52/40 T and 118mm BCD compatible with 5/6-speed systems.+$6.25 shipping
  • Offer #4 priced at $42.50 + $5.62 shipping estimate = $48.12* total. In good working condition. SR SAKAE/RINGYO chainring.+$5.62 shipping
  • Offer #5 priced at $29.95 + $8.85 shipping estimate = $38.80* total. Thanks and Happy Bidding!! SR Apex Chainring Bolt Holes - 5 Teeth - 52 BCD -118mm Material - Aluminum This is a used vintage item.+$8.85 shipping

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