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  3. WHEELS BB30AOUTSRAM

WHEELS MANUFACTURING BB30AOUTSRAM Outboard Bottom Bracket Shimano

Bb30aoutsram Wheels Manufacturing Mfg Bb30 Outboard Bottom Bracket For Shimano

( Brand: Wheels Manufacturing ), ( Manufacturer Part Number: BB30AOUTSRAM ), ( Part Type: Bottom Bracket ), ( Compatible Brand: For Shimano ), ( Color: Black ), ( Shell Width: 68 Mm ), ( Compatible Model: Wheels Mfg ), ( Material: Steel, Aluminum ), ( Manufacturer Warranty: 1 Year ), ( Spindle Type: 24 Mm ), ( Compatible Bike Type: Gravel Bike, Road Bike )

Review WHEELS MANUFACTURING Mfg Bb30 Outboard Bottom Bracket Shimano

The **Shimano BB30A OutSRAM Mfg BB30 Outboard Bottom Bracket** is a precision-engineered, high-performance component designed specifically for modern, lightweight road and gravel bicycles equipped with BB30-style bottom bracket shells. This bottom bracket represents a seamless integration between Shimano s drivetrain ecosystem and SRAM s BB30 standard, offering riders the best of both worlds in terms of compatibility, durability, and efficiency. Crafted from high-grade, heat-treated steel, the BB30A OutSRAM Mfg BB30 Outboard Bottom Bracket ensures exceptional strength and resistance to wear, making it ideal for demanding rides, aggressive climbing, and high-speed descents. Its outboard design places the bearings farther from the center of the crankset, reducing friction and enhancing pedal efficiency a key advantage for cyclists seeking optimal power transfer and smoother crank rotation. The BB30A standard itself is renowned for its compactness and lightweight construction, allowing for thinner frame tubes and a more aerodynamic frame geometry without compromising rigidity. This bottom bracket is fully compatible with Shimano s Hollowtech II cranks, including models like the Dura-Ace, Ultegra, and 105 series, while also accommodating SRAM s BB30-compatible cranks, such as those from the Force and Rival lines. The outboard bearing arrangement not only minimizes chainline deviation but also reduces the risk of derailment, contributing to a more reliable and predictable riding experience. Whether installed in a carbon or aluminum frame, this bottom bracket delivers a seamless fit, ensuring minimal play and maximum precision. Its robust construction and meticulous engineering make it a standout choice for cyclists who demand both performance and longevity from their components.

Buying the **Shimano BB30A Outbound Bottom Bracket (BB30A, Outsram MFG)** for a Shimano drivetrain offers several advantages, but there are also some drawbacks to consider.

### **Pros:**

1. **Compatibility with Shimano Drivetrains:** The BB30A standard is widely supported by Shimano s 105, Ultegra, and Dura-Ace groupsets, as well as some SRAM and Campagnolo components. This makes it a versatile choice for modern road and gravel bikes.

2. **Lightweight:** The Outsram BB30A is one of the lightest bottom brackets available, reducing unsprung mass and improving pedal efficiency.

3. **High Quality Bearings:** Shimano s precision engineering ensures smooth operation and longevity, especially when paired with a compatible crankset.

4. **Easy Installation:** The BB30A standard is straightforward to install, requiring minimal tools and no frame modifications beyond the BB30A-compatible fork.

5. **Future-Proofing:** BB30A is a forward-thinking standard that avoids the limitations of traditional square taper bottom brackets, making it a good long-term investment.

6. **Reduced Chainline Issues:** The outboard design helps maintain proper chainline alignment, reducing wear on drivetrain components.

### **Cons:**

1. **Limited Frame Compatibility:** Not all frames support BB30A. You ll need a fork with a BB30A shell (typically 34mm or 38mm) and a frame with a matching bottom bracket shell. This can limit aftermarket frame choices.

2. **Higher Cost:** Compared to standard square taper or threaded bottom brackets, BB30A units are more expensive, especially when paired with high-end cranksets.

3. **Less Common in Entry-Level Bikes:** BB30A is primarily found on mid-to-high-end bikes, so you may need to source parts separately if your bike doesn t already have it.

4. **Potential Chainline Adjustment Complexity:** While the outboard design helps, some riders report needing slight adjustments to ensure perfect chainline, especially when mixing brands (e.g., Shimano cranks with SRAM derailleurs).

5. **Tooling Requirements:** Installing a BB30A requires a BB30A-specific tool (often an Allen key or hex wrench), which may not be included with the purchase.

### **Conclusion:**

The **Shimano BB30A Outbound Bottom Bracket (Outsram MFG)** is an excellent choice if you re building or upgrading a bike with a Shimano drivetrain and a BB30A-compatible frame/fork. Its lightweight design, smooth operation, and compatibility with modern groupsets make it a strong option for performance-oriented riders. However, the higher cost and limited frame compatibility mean it s best suited for those already in the BB30A ecosystem or planning a new build. If you re on a budget or working with a non-BB30A frame, a traditional square taper or threaded bottom bracket may be more practical.

### **Recommendation:**

- **Buy it if:** You have a BB30A-compatible frame/fork, want a lightweight, high-performance bottom bracket, and are using Shimano components. It s ideal for road, gravel, or endurance bikes where weight and efficiency matter.

- **Avoid it if:** Your frame doesn t support BB30A, you re on a tight budget, or you prefer the simplicity of traditional bottom brackets. In those cases, a Shimano Hollowtech II or threaded BB may be more suitable.

For the best results, pair this BB with a **Shimano 105, Ultegra, or Dura-Ace crankset** and ensure your fork and frame are BB30A-ready. If you re unsure about compatibility, check with your bike manufacturer or a trusted mechanic before purchasing.

Details:

Halves thread together inside press-fit frame. Eliminates BB squeak. Free Shipping in USA Wheels Mfg Cartridge Bottom Bracket.

part #: bb30aoutsram price

  • $140.99

specifications ribicycl:

  • brand: Wheels Manufacturing
  • mpn: Bb30aoutsram
  • part type: Bottom Bracket
  • compatible brand: For Shimano
  • color: Black
  • shell width: 68 Mm
  • compatible model: Wheels Mfg
  • material: Steel, Aluminum
  • manufacturer warranty: 1 Year
  • spindle type: 24 Mm
  • compatible bike type: Gravel Bike, Road Bike

payments ribicycl:

  • other
  • credit card: Discover
  • wallet: Google-pay

shipping ribicycl:

  • transit: 4-10 Days
  • class: Standard
  • carrier: USPS
  • cost: $0.00
  • type: Calculated
  • service: USPS Ground Advantage

general ribicycl:

  • Cycling > Bicycle Components Parts > Bottom Brackets
  • condition: Used

seller ribicycl:

  • # reviews: 550
  • rating: 100.0%
  • city: Southbury, Connecticut

offer ribicycl:

  • best offers: True
  • sold: 0
  • availability: In Stock
  • quantity: 1
  • started: February 8, 2026
  • options: Ship-to-home

returns ribicycl:

  • policy: No Returns
part type: bottom bracket, compatible brand: for shimano, shell width: 68 mm, compatible model: wheels mfg, manufacturer warranty: 1 year, spindle type: 24 mm, compatible bike type: gravel bike, road bike,
category: sporting goods > cycling > bicycle components parts > bottom brackets, color: black, material: steel, aluminum, sku: 16620056096585793,
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1 offer $140.99 USD
  • New. Offer #1 priced at $140.99 + $0.00 shipping estimate = $140.99* total. Height 3.000. BB30A Thread Together Bottom Bracket - ABEC-3.FREE SHIPPING

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