The Shimano CN-HG701 [paid link] chain stands out in the world of road cycling for its exceptional durability, smooth performance, and reliable shifting characteristics. Designed specifically for 11-speed drivetrains, the CN-HG701 [paid link] features Shimano’s proprietary SIL-TEC surface treatment and a reinforced design for both road and mountain bike applications. If you’re considering installing a new CN-HG701 [paid link] chain, a key decision is whether to tackle the job yourself or to enlist the help of a professional mechanic. This guide will help you determine the best approach based on installation requirements, potential challenges, and long-term maintenance considerations.
Understanding the CN-HG701 Chain
Before diving into installation choices, it’s essential to understand what makes the CN-HG701 unique. The chain uses an asymmetric design for optimal shifting performance. The outer plates are shaped to reduce chain drop, while the inner plates promote better chain retention on the cassette. Shimano’s SIL-TEC coating on both sides enhances dirt resistance and reduces friction, contributing to smoother pedaling and a longer lifespan.
Unlike some lower-tier models, the CN-HG701 includes a quick link (Shimano’s SM-CN900-11), which significantly simplifies the installation process when compared to a traditional chain pin method. However, ensuring correct chain length and directional installation is crucial for optimal function.
Tools Required
- Chain breaker tool (compatible with 11-speed chains)
- Shimano Quick Link Tool (or pliers for master link closure)
- Chain checker (to measure wear)
- Ruler or tape measure (for chain sizing)
- Bike stand [paid link] (optional, but recommended)
DIY CN-HG701 Chain Installation: Pros and Cons
Advantages
Cost Savings
Doing the installation yourself eliminates labor costs, which can range from $20 to $50 at a bike shop. For riders who regularly maintain their drivetrain, this savings adds up over time.
Convenience
DIY installation means you can perform the work on your schedule. There’s no need to transport your bike to a shop or wait several days for service during busy seasons.
Skill Development
Installing a chain is an excellent entry point for riders looking to build their mechanical skills. The CN-HG701’s quick link system is particularly friendly for first-time installers with a basic tool set.
Challenges
Precision Required
Chain length must be perfectly adjusted. Too long, and shifting will be sluggish; too short, and you risk drivetrain damage. Shimano recommends sizing the chain by threading it through the largest chainring and largest cog without passing through the derailleur and then adding two full links.
Directionality
The CN-HG701 must be installed with the logos facing outward and the directional arrows on the side plates pointing in the direction of chain movement. Incorrect installation can cause poor shifting and premature wear.
Proper Tension and Link Closure
While the quick link makes closure easier, it still demands proper tension to snap securely into place. A Shimano Quick Link Tool is ideal for ensuring a tight, safe connection.
Risk of Mistakes
Incorrect installation can cause chain skipping, noise, or even drivetrain damage. Mistakes in length, alignment, or connection could shorten the lifespan of expensive components.
Professional CN-HG701 Chain Installation: Pros and Cons
Advantages
Expertise
Professional mechanics have extensive experience and can identify potential issues beyond just chain installation—such as worn cassettes or chainrings that may affect performance. They also ensure precise sizing, tensioning, and orientation.
Proper Tools
Shops have dedicated tools for chain sizing, quick link closure, and drivetrain cleaning that most home mechanics might not own. These tools allow for a faster, more accurate installation.
Warranty Protection
Some bike shops offer a labor warranty on their work. If anything goes wrong within a certain period, they will fix it free of charge.
Peace of Mind
Knowing that a certified mechanic installed your CN-HG701 offers confidence, especially before a big event or long tour where mechanical failure isn’t an option.
Challenges
Cost
Paying for installation adds to the overall expense. Some shops may bundle this service with a full drivetrain inspection or cleaning, which increases costs further.
Time and Logistics
You’ll need to transport your bike to and from the shop, which can be inconvenient, especially if you have a tight schedule.
Factors to Consider When Choosing DIY or Professional Installation
Experience Level [paid link]
If you’re mechanically inclined and have installed chains before, DIY installation is a reasonable choice. If this is your first time or if you’re not confident in your mechanical skills, professional installation reduces the risk of costly errors.
Tool Availability
Having the right tools is critical. While basic chain tools are affordable, specialized tools like Shimano’s Quick Link Pliers improve reliability and ease of installation.
Future Maintenance Plans
If you plan on doing more of your own bike maintenance in the future, investing in the tools and skills to install the CN-HG701 chain yourself is worthwhile. However, if you prefer to leave maintenance to professionals, paying for the installation is a sound investment.
Time Sensitivity
If you need your bike ready quickly and don’t have time to learn the process properly, a professional can ensure it’s done right the first time.
Conclusion
The decision between DIY and professional installation of the Shimano CN-HG701 chain hinges on your mechanical confidence, tool availability, and time constraints. Riders who enjoy working on their bikes and are equipped with the right tools will find the CN-HG701 chain manageable to install with careful attention to detail. However, for those seeking assurance, precision, and expert oversight, professional installation is the right choice. Ultimately, whichever route you choose, ensuring correct chain length, directionality, and closure will keep your drivetrain running smoothly and extend the life of your CN-HG701 chain.