SHIMANO 628343 Nexus Hub Coaster Internal Gear

( Brand: Shimano ), ( Manufacturer Part Number: 628343 ), ( Part Type: Internal Hub ), ( Number Of Spoke Holes: 36 Hole ), ( Freehub/driver Type: Hub Gears ), ( Brake Type: Rear ), ( Color: Silver ), ( Compatible Bike Type: Universal ), ( Set Includes: Cables, Cassette/freewheel, Hubs, Shifters ), ( Material: Steel ), ( Number Of Speeds: 3 Speed )

Review SHIMANO Nexus Speed Hub Coaster Internal Gear Only

The **Shimano Nexus 628343 Internal Gear Hub (Coaster Brake)** is a versatile and reliable hub designed for urban commuters, casual cyclists, and those seeking a low-maintenance, all-in-one solution for their daily rides. This hub combines the simplicity of a coaster brake where the rear wheel locks automatically when pedaling backward with the smooth, multi-speed performance of Shimano s Nexus internal gear hub system. Built with a durable steel axle and a robust frame, the 628343 is engineered to handle the rigors of city streets, light trails, and errands with ease, making it an ideal choice for riders who prioritize convenience without sacrificing performance. The hub features a **7-speed internal gear system**, allowing cyclists to effortlessly shift between gears with a flick of the thumb, reducing pedal strain and making climbing hills or accelerating effortless. The coaster brake mechanism ensures safety by preventing unwanted forward motion when stopping, eliminating the need for separate hand brakes, which is particularly beneficial for riders who prefer a hands-free approach or those who frequently stop at traffic lights or curbs. Constructed with high-quality materials, including a sturdy steel shell and precision-engineered gears, this hub delivers smooth, quiet operation and long-lasting durability, even under regular use. Whether installed on a hybrid, commuter, or city bike, the Shimano Nexus 628343 provides a seamless riding experience, blending functionality, ease of use, and reliability into one compact and efficient component. Its compact design also makes it an excellent fit for bikes with limited rear triangle clearance, ensuring a snug and secure installation. For riders who value simplicity, safety, and performance in a single package, the Shimano Nexus 628343 Internal Gear Hub is a dependable and practical choice that enhances both the practicality and enjoyment of cycling.

The Shimano Nexus 628343 internal gear hub with a coaster brake is a budget-friendly option for casual cyclists, particularly those looking for a simple, low-maintenance setup. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

1. **Simplicity and Low Maintenance** As an internal gear hub, it eliminates the need for external derailleurs, chains, or cassettes, reducing the risk of derailments, chain drops, and general wear. This also means fewer components to clean, lubricate, or replace, making it ideal for riders who prefer a hassle-free experience.

2. **Coaster Brake Functionality** The built-in coaster brake allows for one-handed braking by pedaling backward, which is convenient for stopping quickly without needing to grip the handlebars. This feature is particularly useful for commuters, kids, or riders who may not be comfortable with traditional hand brakes.

3. **Durability and Reliability** Shimano is a well-known brand with a reputation for producing durable components. The internal gearing is enclosed within the hub, protecting it from dirt, moisture, and wear from external elements. This can extend the lifespan of the hub compared to external derailleur setups, which are more susceptible to damage.

4. **Cost-Effective** The Nexus 628343 is priced affordably, making it accessible for riders on a budget. It s often used in entry-level bikes, making it a practical choice for those who don t want to invest in a more complex drivetrain.

5. **Low Noise and Smooth Operation** Internal gear hubs are generally quieter than external derailleur systems, especially when shifting gears smoothly. The coaster brake also provides a consistent stopping power without the squeaking or grinding that can occur with hand brakes over time.

6. **Versatility for Casual Use** The three-speed internal gearing is sufficient for flat terrain, light hills, and casual riding. It s not designed for high-performance or off-road use, but it performs well for commuting, leisure rides, or urban cycling where speed and gearing demands are moderate.

7. **Easy Installation** Since it s an internal hub, it can be installed on most standard bike frames without requiring significant modifications. It s also compatible with a wide range of wheel sizes and rim widths, making it a flexible choice for retrofitting or new builds.

---

1. **Limited Gearing Range** The three-speed internal gearing is adequate for flat or gently rolling terrain but struggles with steep hills or high-speed riding. Riders who frequently encounter steep climbs or prefer higher speeds may find the gearing insufficient, leading to frequent pedaling effort or discomfort.

2. **No External Brakes** The coaster brake is convenient but lacks the precision and stopping power of disc or rim brakes, especially in wet or heavy-duty conditions. Riders who prioritize safety in wet weather or heavy traffic may find the coaster brake inadequate.

3. **Less Customization** Unlike external derailleur setups, internal gear hubs offer limited gearing options. You cannot adjust the gear ratios or add more speeds without replacing the entire hub. This lack of customization can be frustrating for riders who want to fine-tune their gearing for specific conditions.

4. **Weight** Internal gear hubs are generally heavier than lightweight external derailleur setups. While the extra weight may not be noticeable on casual rides, it could affect performance slightly, especially on longer or more demanding rides.

5. **Limited Availability of Spare Parts** Shimano s internal gear hubs are less common in the market compared to external drivetrain components. Finding replacement parts, such as bearings or seals, can be more challenging and may require ordering from specialized suppliers.

6. **Potential for Overheating** In extreme conditions, such as prolonged downhill riding or heavy use, the internal gearing can overheat, leading to reduced performance or premature wear. Proper maintenance and avoiding excessive strain can mitigate this issue.

7. **Less Aesthetic Appeal** Internal gear hubs are not as visually appealing as external derailleur setups, especially for riders who prioritize the look of their bike. The bulky design of the hub may not suit those who prefer a sleek or minimalist appearance.

8. **No Reverse Pedaling** Unlike some internal gear hubs with a freewheel mechanism, the coaster brake does not allow for reverse pedaling. This can be inconvenient for riders who need to backpedal, such as when parking or maneuvering in tight spaces.

---

The Shimano Nexus 628343 internal gear hub with a coaster brake is an excellent choice for casual cyclists, commuters, or riders who prioritize simplicity, low maintenance, and affordability. Its enclosed design reduces the risk of mechanical failures, and the coaster brake provides a convenient stopping mechanism. However, it is not ideal for riders who require precise braking, steep hill climbing, or high-speed performance. The limited gearing range and lack of customization may also be drawbacks for those who want more control over their riding experience.

---

- You are a casual rider or commuter who values simplicity and low maintenance.

- You primarily ride on flat or gently rolling terrain and do not encounter steep hills frequently.

- You prefer a coaster brake for its convenience and do not require high-performance braking.

- You are on a budget and want an affordable, durable option for your bike.

- You do not mind the limited gearing range and lack of customization.

- You frequently ride on steep hills or require a wider range of gears.

- You prioritize high-performance braking and need reliable hand brakes.

- You want a lightweight or visually appealing drivetrain setup.

- You plan to engage in high-speed or competitive cycling where external derailleurs offer better performance.

- You need the ability to reverse pedal or require precise gear adjustments.

For riders who meet the criteria above, the Shimano Nexus 628343 is a practical and reliable choice. However, if your riding demands are more complex or performance-oriented, consider upgrading to an external derailleur system or a higher-end internal gear hub with more speeds and better braking options.

Details:

Up for sale and it should be ready to ride with the shifter bits that's its missing being installed.

part #: 628343 prices

• $45.00-$96.88

specifications ribicycl:

• brand: Shimano
• mpn: 628343
• part type: Internal Hub
• number of spoke holes: 36 Hole
• freehub/driver type: Hub Gears
• brake type: Rear
• color: Silver
• compatible bike type: Universal
• set includes: Cables, Cassette/freewheel, Hubs, Shifters
• material: Steel
• number of speeds: 3 Speed

returns ribicycl:

• policy: No Returns

payments ribicycl:

• wallet: Apple-pay
• other
• credit card: Mastercard

offer ribicycl:

• sold: 0
• options: Ship-to-home
• quantity: 1
• best offers: True
• started: March 21, 2026
• availability: In Stock

general ribicycl:

• condition: Used
• Cycling > Bicycle Components Parts > Hubs

shipping ribicycl:

• transit: 4-7 Days
• class: Standard
• service: USPS Ground Advantage
• carrier: USPS
• cost: $6.68
• type: Calculated

seller ribicycl:

• city: Minneapolis, Minnesota
• # reviews: 910
• rating: 99.8%

Shimano 628343 Is Similar To:

• 02206 Shimano Ez Fire Speed Right Hand Bike Bicycle Gear Lever (44.6% similar) ...(August 15th, 2018)
• 0318226 Cannondale Czero Hub End Cap For Shimano Freehub (20.9% similar) The item you see there is one will receive. Cannon dale zero hub 142X12 end cap for Shimano freehub look at the pictures closely...(March 25th, 2018)
• 101692 Ceramicspeed New Pulley Wheels Shimano Speed Alloy Black 5711050004454 (25% similar) Retail price is manufacturers suggested and may not reflect actual selling prices. Alternatively, please go to purchase history and find the order you want cancel. New ceramic speed pulley wheels Shimano 11 speed alloy black assemblies for ISP system only. Ceramic speed pulley assemblies for ISP ...(November 2nd, 2018)
• 101694 Ceramicspeed New Pulley Wheels Shimano Speed Red 5711050004478 (25% similar) Ceramic speed pulley assemblies for ISP system only. Alternatively, please go to purchase history and find the order you want cancel. Retail price is manufacturers suggested and may not reflect actual selling prices. New ceramic speed pulley wheels Shimano 11 speed red assemblies for ISP system only...(November 2nd, 2018)
• 11411s0 Connex New By Wippermann Speed Chain Shimano Sram 4041319002046 (18.5% similar) Return exchange instructions provided on included receipt. The value-priced steel chain offers all new design features and convincing gear-changing properties of our 10-SPEED series. One new Superman convex steel chain link Shimano, campanile, scram 11 speed compatible size: speed, 1/2 x X118 color...(December 11th, 2018)
• 1248585 Shimano Nexus Sg-3d55 3speed (40% similar) Direct drive, 3RD gear includes shifter, bell-crank, and 1560MM shift cable with housing 2ND no tags, has never been used Shimano nexus SG-3D55 3-SPEED disc brake internally geared hubs 3 speeds with a 186 gear range: 1ST...(January 23rd, 2018)
• 152360070023d Miche Shimano Middle Position Cog Speed (28.6% similar) Michel Shimano 23T middle position cog 10 speed 10-SPEED cogs for...(August 31st, 2018)
• 16081 Kmc Speed Fits Shimano Sram Mountain Hybrid Bike 766759950064 (25.4% similar) ...(December 20th, 2018)
• 18431 Sunlite Bicycle Freewheel Free Wheel Speed Fits Shimano 072774184316 (18% similar) Shimano equivalent MF-TZ20...(November 18th, 2018)
• 2a4.fw.7.566 Miche Shimano Splined Speed Cassette (38.9% similar) 5MM body type Shimano scram 8, 9, 10 speed cassette COGS11 27RANGE11-27DRIVETRAIN SPEEDS10 Michel cassettes use individual cogs and spacers which allow for easy customization of ratios does not fit Chris king hubs individual are also sold separately Shimano-splinted come with 30...(August 31st, 2018)
• 4 524667 428664 Shimano Deore Xt Cassette Speed Sprockets (32.8% similar) Shimano Deere XLT CS-M771-10 cassette 10 speed sprockets new in box...(December 17th, 2018)