Bontrager Comp 30 rear hub reviews
Reviews for the Bontrager Line Comp 30 rear hub generally praise its balance of performance and value, especially the quick-engaging Rapid Drive 108 hub
. However, some riders have noted issues with hub durability, particularly with the bearings and the potential for contaminants to enter the freehub mechanism.
Performance
High engagement: The hub's Rapid Drive mechanism features 108 points of engagement, resulting in a snappy 3.3 degrees of crank rotation before power is transferred. This is a standout feature for a wheelset in its price range and is beneficial for technical climbing and maneuvering.
Good value: Most reviewers consider the Line Comp 30 wheelset an excellent value, particularly for riders who purchase a Trek bike with the wheelset already installed. Some reviews note that for a relatively small cost, the hub can be upgraded to the full 108-point engagement, making it an even better deal.
Service and durability
Easy maintenance: The freehub mechanism is designed for simple, tool-free disassembly, making cleaning and re-lubricating the pawls and springs a straightforward process.
Pawl and spring issues: Some users report that the freehub is susceptible to dirt and grime, which can cause the bearings to feel gritty or lead to pawl and spring problems over time.
Catastrophic failure: A more severe but less common issue reported on forums is the complete failure of the ratchet mechanism, where the "ratchet part is bonded (glued) into the hub" and the bond lets go. In such a scenario, the pedals will spin without the wheel engaging, requiring a hub replacement.
Bearing durability: Several riders have noted that the bearings are a weak point, with some experiencing premature wear even under dry riding conditions. However, the bearings are relatively easy to replace when they wear out.
End cap loosening: On some wheels, the freehub body or end caps may come loose over time, causing lateral play. This is a common issue for many hubs but is generally easy to fix by re-tightening the components.
Who is it for?
The Bontrager Line Comp 30 rear hub is a suitable option for:
Value-focused riders: Those who want high engagement performance without the premium price tag of boutique hubs.
Trek bike owners: Riders who get the wheelset as original equipment on a mid-range Trek mountain bike, as it offers a solid performance base that can be upgraded with a pawl kit.
Mechanically inclined cyclists: The hub's easy serviceability is a plus for riders who don't mind performing more frequent hub maintenance to ensure longevity.
Considerations
Maintenance frequency: To prevent premature wear, riders should be prepared to perform basic freehub cleaning and lubrication more frequently than on some higher-end, better-sealed hubs.
Heavy-duty use: For aggressive trail or enduro riding, the hub may not be as bombproof as higher-end, more expensive options, particularly regarding the bearing seals and the potential for complete failure.