
( Brand: Sram ), ( Part Type: Kit ), ( Compatible Brand: For Sram ), ( Color: Black ), ( Compatible Bike Type: Mountain Bike ), ( Material: Aluminum ), ( UPC: 007518198000 )
The **SRAM 90 Kit (Part Number: 007518198000)** is a high-performance, precision-engineered drivetrain designed for cyclists seeking a seamless and efficient riding experience across a wide range of terrains, from aggressive mountain trails to fast-paced gravel routes. This kit represents the pinnacle of SRAM s 12-speed technology, featuring a refined and robust system that delivers unmatched shifting performance, durability, and weight savings. At its core, the **90 Kit** combines the **XX1 Eagle 12-speed drivetrain** with the **GX Eagle rear derailleur**, offering a balanced blend of performance and value. The system is built around SRAM s proprietary **Eagle cassette**, which includes a wide range of 11-to-42T or 11-to-50T gearing options, allowing riders to conquer steep climbs with ease while maintaining speed on descents. The **XX1 Eagle crankset** is crafted from lightweight yet ultra-durable materials, including a **forged aluminum spider** and **carbon fiber arms**, ensuring both strength and agility. The **GX Eagle rear derailleur** complements this setup with a smooth, precise shifting mechanism, incorporating SRAM s **Quick Release Pivot (QRP) technology** for quick adjustments and maintenance. This kit is ideal for riders who demand reliability without compromising on performance, making it a versatile choice for both cross-country and enduro disciplines. Whether tackling technical singletrack or long-distance rides, the **SRAM 90 Kit** ensures a responsive and efficient power transfer, allowing riders to push their limits with confidence. Its compact design and optimized gearing ratios make it a standout option for those who prioritize both speed and control in their cycling experience.
The SRAM 007518198000 (90mm 2x10 drivetrain kit) is a popular mid-range option for cyclists looking to upgrade their gearing without investing in a full carbon or high-end system. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.
---
### **Pros of the SRAM 007518198000 (90mm 2x10) Kit**
1. **Balanced Performance and Value**
The kit offers a strong performance-to-cost ratio, making it ideal for cyclists who want a noticeable upgrade without spending as much as on premium systems like the Force or XX1. The 90mm chainline (compatible with 100mm chainline frames) provides a smoother, more efficient shift compared to older 80mm systems.
2. **Reliable and Durable Components**
SRAM s 10-speed drivetrain is well-regarded for its durability and consistency. The chain, cassette, and derailleur are built to handle rough conditions, making them suitable for both road and light gravel use. The chain is particularly robust, with fewer stretch issues than some budget alternatives.
3. **Wide Gear Range (2x10 Setup)**
The 2x10 configuration (typically paired with a 34T chainring and a 10-34T cassette) provides a broad range of gears, allowing for efficient climbing and fast sprinting. This setup is versatile for various riding styles, including commuting, fitness riding, and light racing.
4. **Compatibility with Existing Frames**
The 90mm chainline is backward-compatible with many 100mm chainline frames, meaning you can upgrade without needing a new frame. This kit also works with SRAM s 10-speed shifters and brakes (e.g., Force, Rival, or Apex), offering flexibility in system integration.
5. **Good Shift Quality**
SRAM s 10-speed drivetrains are known for smooth shifting, especially when paired with compatible shifters (like the Rival or Apex). The cassette and chainring are designed to work together efficiently, reducing skipping or hesitation during shifts.
6. **Lightweight for the Price**
Compared to budget brands, SRAM s components are relatively lightweight. The chain and cassette are not as featherlight as carbon options, but they are significantly lighter than older steel or aluminum alternatives, improving pedal efficiency.
7. **Easy Installation and Maintenance**
SRAM s 10-speed components are straightforward to install, even for DIYers. The chain is easy to replace, and the cassette is designed for quick removal. SRAM also provides clear maintenance guidelines, making upkeep manageable.
8. **Strong Brand Support**
SRAM has a well-established reputation for reliability and customer support. Parts are widely available, and mechanics are familiar with troubleshooting common issues. This reduces downtime and frustration compared to lesser-known brands.
9. **Future-Proofing Potential**
While SRAM has shifted focus to 11-speed and 12-speed systems, the 10-speed platform remains viable for many riders. If you prefer simplicity or have no plans to upgrade soon, this kit is a practical choice.
10. **Aesthetic Appeal**
SRAM s components have a clean, modern design that appeals to riders who value both performance and appearance. The black or silver finish options add a premium look to the bike.
---
### **Cons of the SRAM 007518198000 (90mm 2x10) Kit**
1. **Not the Latest Technology**
SRAM s focus has shifted to 11-speed and 12-speed systems (e.g., Force eTap, Rival AXS), which offer narrower chainline options, lighter components, and improved efficiency. If you re looking for cutting-edge performance, you may want to consider a newer kit.
2. **Limited Chainline Options**
The 90mm chainline is not as narrow as modern 100mm or 103mm chainlines, which can slightly reduce efficiency compared to newer setups. However, the difference is minimal for most riders.
3. **Higher Weight Than Carbon Options**
While the kit is lightweight for its class, it is heavier than carbon drivetrains (e.g., Shimano Ultegra or SRAM Force). For competitive riders or those prioritizing weight savings, this may be a drawback.
4. **Potential for Chain Wear**
SRAM s 10-speed chains are durable but can wear faster than 11-speed chains, especially in wet or dirty conditions. Frequent chain replacements may be needed compared to newer systems.
5. **Compatibility Issues with Some Frames**
While the 90mm chainline works with many 100mm frames, some modern frames (especially those designed for 11-speed) may not align perfectly. Always check compatibility before purchasing.
6. **Limited Cassette Options**
The 10-speed cassette range is fixed (e.g., 10-34T), which may not suit riders who prefer a wider or narrower range. If you need custom gearing, you ll have to stick to SRAM s standard cassettes.
7. **No Electronic Shifting**
This kit is mechanical only, meaning it lacks the precision and convenience of electronic shifting (e.g., SRAM Force eTap). Electronic systems offer smoother shifts and easier programming, which may be a dealbreaker for some.
8. **Resale Value**
As SRAM moves away from 10-speed, the resale value of this kit may decline faster than newer systems. If you plan to upgrade soon, the depreciation could offset some of the initial savings.
9. **Potential for Misalignment**
Like all drivetrains, this kit can suffer from misalignment issues if not installed or maintained properly. This may lead to chain skipping or poor shifting, though SRAM s components are generally forgiving.
10. **No Integration with Wireless Systems**
SRAM s newer wireless systems (e.g., AXS) offer remote control and app integration, which this kit lacks. If you re interested in future-proofing with wireless tech, you ll need to invest in a higher-end system.
---
### **Conclusion**
The SRAM 007518198000 (90mm 2x10) kit is an excellent mid-range option for cyclists who want a reliable, smooth-shifting drivetrain without the cost of a premium system. It strikes a balance between performance, durability, and value, making it suitable for commuters, fitness riders, and those who want a noticeable upgrade from older or cheaper setups. The kit s compatibility with existing frames, ease of maintenance, and strong brand support further enhance its appeal.
However, if you re a competitive rider, prioritize weight savings, or want the latest technology (e.g., electronic shifting or narrower chainlines), you may want to consider a newer SRAM system (e.g., Rival AXS) or a carbon drivetrain like Shimano Ultegra. For most casual to intermediate riders, this kit offers outstanding value and performance for its price.
---
### **Recommendation**
**Buy this kit if:**- You re looking for a reliable, smooth-shifting 10-speed drivetrain with a good balance of performance and cost.
- You want to upgrade from an older or budget drivetrain (e.g., 8-speed or entry-level 10-speed).
- Your frame is compatible with the 90mm chainline, and you don t need the narrowest chainline for aerodynamics.
- You prefer mechanical shifting and don t require electronic features.
- You value SRAM s reputation for durability and customer support.
**Avoid this kit if:**- You re a competitive rider or prioritize weight savings, as newer systems offer better efficiency.
- You want the latest technology, such as electronic shifting or wireless control.
- Your frame is designed for a narrower chainline (e.g., 100mm or 103mm), and you want the best possible fit.
- You plan to upgrade to 11-speed or 12-speed soon, as this kit may not be as future-proof.
**Final Verdict:**For the average rider seeking a practical, high-quality upgrade, the SRAM 007518198000 kit is a **strong recommendation**. It delivers excellent value, reliability, and performance without the complexity or cost of higher-end systems. If you re satisfied with mechanical shifting and don t need the absolute latest tech, this kit is a smart choice.
Shiftier has matchmaker x clamp if you run Sram brakes. Want to try Sram transmission. For 350 plus shipping you get a lightly used GX type cassette and Sram 90 shiftier derailleur. Deal of the century.