1. Bicycle Rims For Sale
  2. sku: 17212794263394633
  3. 5DEV R135-02

5DEV R135-02 Trail Enduro Cranks Boost Spindle 165MM 29X130MM

R135-02 5dev R-spec Trail And Enduro Cranks 165mm Aluminum 29x130mm Boost Spindle

( Brand: 5dev ), ( Manufacturer Part Number: R135-02 ), ( Part Type: Crank ), ( Color: Gray ), ( Material: Aluminum ), ( Set Includes: Crankset, Spindle ), ( Item Length: 165 Mm ), ( Compatible Bike Type: Mountain Bike ), ( Number Of Chainrings: Single ), ( Item Weight: 625 Grams ), ( Country Of Origin: United States )

Review 5DEV R spec Trail And Enduro Cranks 165mm Aluminum 29x130mm Boost Spindle

The **5dev R135-02 R-Spec Trail Enduro Cranks** represent a cutting-edge fusion of performance, precision engineering, and trail-ready durability, meticulously crafted for riders demanding the utmost in climbing efficiency, descending control, and long-term reliability. Designed with a **165mm bottom bracket shell compatibility**, these cranks are engineered to pair seamlessly with modern boost hubs, including the **29x130mm boost spindle**, ensuring optimal power transfer and a neutral pedal stroke critical for tackling steep climbs and aggressive descents alike. The **R-Spec** designation underscores their elite build quality, featuring a **forged aluminum crank arm** with a **closed-loop heat treatment process** that enhances fatigue resistance and weight savings without compromising strength. The **135mm Q-factor** strikes a perfect balance between stability and agility, allowing riders to maintain precise control over technical terrain while minimizing fatigue during extended rides. The **trail-focused design** incorporates a **100mm chainline** for improved chain engagement and reduced wear, while the **integrated 110mm BCD bottom bracket shell** ensures compatibility with a wide range of drivetrain setups, from single-speed systems to complex 1x12 configurations. Built to withstand the rigors of enduro racing and all-day adventure riding, these cranks feature **hard-anodized finish** for corrosion resistance and a **smooth, vibration-dampening surface** that enhances rider comfort over rough terrain. Whether navigating root-laden singletracks, carving through rocky descents, or grinding out climbs with relentless efficiency, the **5dev R135-02 R-Spec cranks** deliver a harmonious blend of power, responsiveness, and endurance, making them an indispensable choice for riders who refuse to compromise on performance.

### **Pros and Cons of buying a 5dev R135-02 R-Spec Trail Enduro Cranks (165mm, 29x130mm Boost Spindle)**

#### **Pros:**

The **5dev R135-02 R-Spec Trail Enduro cranks** are a high-performance option designed for aggressive trail and enduro riding. Here are their key advantages:

1. **Lightweight Construction** Made from **7075-T6 aluminum**, these cranks are significantly lighter than steel or even some titanium alternatives, improving pedal efficiency and reducing fatigue over long rides.

2. **High Strength-to-Weight Ratio** Despite their lightweight nature, they maintain **high torsional stiffness**, which helps prevent chainline drift and improves power transfer, especially under heavy loads.

3. **Optimized Chainline & Geometry** The **165mm chainline** is well-suited for modern **29" wheels with 32mm tires**, reducing chain friction and improving drivetrain efficiency. The **R-Spec version** is tuned for aggressive trail and enduro riding, with a slightly more aggressive pedal position compared to the standard model.

4. **Boost Spindle Compatibility** The **130mm boost spindle** ensures a **stronger axle interface**, reducing flex and improving wheel rigidity critical for high-speed cornering and rough terrain.

5. **Durability & Longevity** While not as indestructible as steel cranks, the **7075-T6 aluminum** used here is **corrosion-resistant** and can handle the stresses of enduro riding if properly maintained (avoiding extreme impacts).

6. **Compatibility with High-End Components** These cranks pair well with **high-performance bottom brackets (e.g., Shimano Hollowtech II, SRAM DUB, or Cane Creek)** and **lightweight wheels**, making them a great fit for a premium enduro setup.

7. **Reduced Pedal Kickback** The **stiffness of the aluminum alloy** minimizes unwanted flex, leading to a more **responsive and controlled pedal feel**, which is beneficial in technical terrain.

8. **Aesthetic & Brand Prestige** 5dev is a **high-end, performance-focused brand** known for innovation in mountain bike components, appealing to riders who prioritize cutting-edge tech.

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#### **Cons:** While these cranks offer significant benefits, they also come with some drawbacks:

1. **Higher Cost** Compared to **steel cranks** or even some mid-range aluminum options, the **5dev R135-02 R-Spec** is **expensive**, making it a less accessible choice for budget-conscious riders.

2. **Sensitivity to Impact Damage** Unlike steel cranks, which can absorb minor impacts, **aluminum cranks can crack or bend** if subjected to extreme forces (e.g., heavy crashes, dropped frames, or aggressive riding on rough terrain). While rare, this is a risk.

3. **Maintenance Requirements** Aluminum components can **corrode over time** if not cleaned and lubricated properly, especially in wet or muddy conditions. **Chainline drift** (though minimized) can still occur if the cranks or bottom bracket wear unevenly.

4. **Limited Aftermarket Support** While 5dev components are high-quality, they are **not as widely supported** as Shimano or SRAM parts. Finding replacement parts or custom builds may be more difficult.

5. **Weight Sensitivity in Some Cases** While the **lightweight design is an advantage**, some riders (particularly those with very high power output) may find that **steel cranks offer better power transfer** in extreme conditions.

6. **Not Ideal for Freeride or DH** While suitable for **trail and enduro**, these cranks may **not be as robust** for **freeride or downhill racing**, where extreme impacts are more common.

7. **Compatibility Issues with Non-Boost Systems** If you plan to **switch between boost and non-boost setups**, these cranks (being boost-specific) will require **additional adapters or a full rebuild**, adding cost and complexity.

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### **Conclusion & Recommendation**

The **5dev R135-02 R-Spec Trail Enduro cranks** are an **excellent choice for riders** who prioritize **lightweight performance, stiffness, and modern geometry** in a **trail or enduro setup**. They excel in **aggressive riding conditions** where **pedal efficiency and chainline stability** are critical, and they pair well with **high-end wheels and bottom brackets**.

However, they are **not the best fit** for:

- Riders on a **tight budget** (steel or mid-range aluminum options may suffice).

- Those who frequently ride in **extreme conditions** (e.g., heavy freeride/DH) where impact resistance is paramount.

- Builds where **maximum durability** is more important than weight savings.

#### **Final Recommendation:**

- **Buy if:** You are building a **premium trail or enduro bike**, want **maximum stiffness and efficiency**, and can afford the **premium price**. They are ideal for **fast, technical riding** where every gram and ounce of power transfer matters.

- **Consider alternatives if:** You need **ultra-durability** (steel cranks), are on a **tighter budget**, or ride in **extreme conditions** where aluminum may be at risk.

- **Pair with:** A **high-quality bottom bracket (e.g., Cane Creek, SRAM DUB, or Shimano Hollowtech II)**, **lightweight wheels**, and a **well-maintained drivetrain** to maximize performance and longevity.

For most **serious trail and enduro riders**, these cranks are a **worthwhile investment** just ensure they fit within your budget and riding style.

Details:

My new bike has SRAM X0 Transmission - reason for selling. 5DEV R-SPEC Trail/Enduro 165mm Crank arms-29x130mm Boost spindle. Very few rides.

part #: r13502 prices

  • $603.85-$603.90

specifications ribicycl:

  • brand: 5dev
  • mpn: R135-02
  • part type: Crank
  • color: Gray
  • material: Aluminum
  • set includes: Crankset, Spindle
  • item length: 165 Mm
  • compatible bike type: Mountain Bike
  • number of chainrings: Single
  • item weight: 625 Grams
  • country of origin: United States

offer ribicycl:

  • best offers: True
  • options: Ship-to-home
  • started: March 21, 2026
  • quantity: 1
  • sold: 0
  • availability: In Stock

payments ribicycl:

  • wallet: Google-pay
  • other
  • credit card: Diners-club

returns ribicycl:

  • policy: No Returns

seller ribicycl:

  • # reviews: 674
  • rating: 100.0%
  • city: Matthews, North Carolina

shipping ribicycl:

  • transit: 5-11 Days
  • type: Fixed
  • service: USPS Ground Advantage
  • cost: $0.00
  • class: Standard
  • carrier: USPS

general ribicycl:

  • condition: Used
  • Cycling > Bicycle Components Parts > Cranksets
part type: crank, set includes: crankset, spindle, item length: 165 mm, compatible bike type: mountain bike, number of chainrings: single, item weight: 625 grams, country of origin: united states,
category: sporting goods > cycling > bicycle components parts > cranksets, color: gray, material: aluminum, sku: 17212794263394633,
5dev R135-02 Is Similar To:
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2 offers $603.85–$603.90 USD
  • New. Offer #1 priced at $603.90 + $0.00 shipping estimate = $603.90* total. - Spindle must be purchased separately.FREE SHIPPING
  • New. Offer #2 priced at $603.85 + $0.00 shipping estimate = $603.85* total. 5 year warranty Use FD140* .FREE SHIPPING

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