Giant GP7128 service manual

Models: GP7128

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GP7128 Repair Instructions

8.Separate plunger (36) from crosshead (25) by means of one open-end wrench.

9.Pull seal sleeves (39) out of their fittings in the crank- case. Take seal case (38) out of seal sleeve (39).

38CA

38DB

38

38B

38A

36

10.If o-rings (38A and 38C) or support rings (38B and 38D) are damaged, replace with new parts. Examine plunger (36) for wear.

39A

39

41

42

43

45

 

 

 

 

 

 

11.Take a thin screw driver and pry out the grooved ring (39A).

Note: This seal (39A) will not be reusable, so replace with a new part. For the seal-pack(41-43A), remove with either a socket wrench or use a screw driver to push against the rear lip of the pressure ring (41) or v-sleeves (42). You will need to remove seals evenly out of the seal sleeve (39). Be careful not to score the sleeve or metal parts (41 & 43).

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Giant GP7128 service manual

GP7128 specifications

The Giant GP7128 is a notable addition to the world of high-performance bicycles, designed for cycling enthusiasts who seek reliability and versatility in both urban settings and rugged terrains. This model embodies the commitment to quality and innovation that Giant is known for, making it a popular choice among riders of all levels.

One of the main features of the Giant GP7128 is its lightweight aluminum frame, crafted from high-grade materials to ensure durability without sacrificing performance. This frame design contributes to an agile riding experience, ideal for both commuting and recreational cycling. The geometry of the GP7128 is carefully engineered to provide a comfortable riding position, minimizing strain during long rides while maximizing control and responsiveness.

Equipped with a Shimano drivetrain, the GP7128 features a smooth-shifting gear system that allows cyclists to effortlessly navigate various inclines and terrains. The combination of a wide gear range offers optimal efficiency, ensuring riders can maintain speed and cadence regardless of the conditions. The bike's braking system is also noteworthy, featuring both front and rear disc brakes that provide reliable stopping power in all weather scenarios, enhancing safety on the road.

The Giant GP7128 boasts advanced tire technology, with puncture-resistant tires designed to withstand rough surfaces and sharp objects. This feature not only enhances the bike’s longevity but also gives riders peace of mind on longer rides. The wheels are built to be robust yet agile, allowing for quick acceleration and stable handling, making the bike a versatile option for city commuting or weekend adventures.

Another impressive aspect of the GP7128 is its ergonomic handlebars and saddle design. These components are specifically tailored to reduce fatigue, promoting a more enjoyable riding experience even on longer distances. Additionally, the bike is compatible with a range of accessories, including fenders and racks, making it an ideal choice for those looking to customize their ride for various purposes.

In summary, the Giant GP7128 stands out with its lightweight aluminum frame, reliable Shimano drivetrain, powerful disc brakes, and puncture-resistant tires, along with ergonomic design features. This bike represents a blend of performance, comfort, and practicality, appealing to both casual riders and serious cyclists seeking a reliable vehicle for their outdoor pursuits. Whether navigating city streets or exploring nature trails, the GP7128 is equipped to deliver an exceptional cycling experience.