Trystan Casey
The Electra Townie 8i is a bicycle with an internal gear hub. If you're experiencing slipping gears, it might be due to the shifting chain being at the wrong tension. You can adjust the tension by locating the adjuster barrel by the rear hub and turning it by hand to tighten or loosen the chain. You can also adjust the tension by locating the cable tension indicator, which is a small plastic window or a small piece of metal painted yellow, and turning the barrel adjuster on the shifter until the outboard yellow line moves.
| Characteristics | Values |
|---|---|
| Barrel adjuster | Used to adjust the tension of the chain on the rear hub |
| Location | On the shifter |
| Use | Turn the barrel adjuster until you see the outboard yellow line move |
| Other components | Center-adjust screw, brake release lever, pad-clamp bolt, attachment bolts, fixed-pad adjuster, cable-clamp bolt, alignment bolts, brake arm |
| Other adjustments | Reach-adjustment screw, lever-clamp expansion bolt |
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What You'll Learn
- The barrel adjuster is used to fix slipping gears
- It can be turned by hand to tighten or loosen the chain
- The Nexus hub has an indicator window with two lines that should be aligned
- The cable tension on a Shimano Nexus/Alfine 8-speed hub needs to be precise
- Adjusting the cable tension can help fix slipping gears
The barrel adjuster is used to fix slipping gears
The Electra Townie 8i is an 8-speed internal gear hub that uses what Shimano calls a cassette joint. As the shifter pulls the cable, it moves a bracket counterclockwise on the hub body. Cable tension on a brand new Nexus/Alfine 8-speed hub needs to be precise.
If you are experiencing slipping gears, the first thing to check is the cable tension. You can find the cable tension indicator on the top and bottom of the hub. The top one is a small plastic window, and the bottom one is a small piece of painted yellow metal. It may be easier to find if you flip the bike over.
If the cable tension is incorrect, you can adjust it by turning the barrel adjuster on the shifter until you see the outboard yellow line move. The barrel adjuster is a small, cylindrical component located near the shifter or the rear hub, depending on the bike model. By turning the barrel adjuster, you can increase or decrease the tension on the cable, ensuring it aligns with the gear you are in.
On some models, there is an indicator window on the rear hub that displays two yellow lines. These lines should be parallel and aligned when the bike is in the correct gear. If they are not, you can adjust the barrel adjuster until they are. This may require some fine-tuning by riding the bike and making small adjustments until it shifts perfectly.
If your bike does not have an indicator window, you can try loosening or tightening the cable to achieve the correct tension. Adjusting the cable tension will ensure that all the hub gears function correctly.
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It can be turned by hand to tighten or loosen the chain
If you're experiencing slipping gears on your Electra Townie 8i, this could be due to the shifting chain being at the wrong tension. To fix this, you'll need to locate the rear hub of your bike and find the shifting chain that leads into the hub on the drivetrain side.
Here, you should see an adjuster barrel which can be turned by hand to tighten or loosen the chain. This is a useful feature of the Nexus hub, which also has an indicator window with a yellow indicator and two lines that you can use to ensure the chain is lined up correctly.
If your bike does not have an indicator window, you can try loosening or tightening the cable instead. The correct tension will allow you to use all the hub gears. It's important to note that cable tension needs to be precise, especially on a brand new Nexus/Alfine 8-speed hub.
You can find the cable tension indicator on the top and bottom of the hub. The top one is a small plastic window, while the bottom one is a small piece of painted yellow metal. Adjust the barrel adjuster on the shifter until the outboard yellow line moves.
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The Nexus hub has an indicator window with two lines that should be aligned
The Shimano Nexus 8 internally geared hub has an indicator window with two yellow lines that should be aligned. If these lines are not aligned, it can cause the gears to slip, especially in 4th gear or after riding on hilly terrain. This issue can be resolved by adjusting the cable tension on the hub.
To adjust the cable tension, locate the cable tension indicator on the top or bottom of the hub. The top indicator is a small plastic window, while the bottom one is a small piece of metal painted yellow. Once you have located the indicator, turn the barrel adjuster on the shifter until the yellow indicator lines up evenly between the two yellow lines on the bellcrank's sight window.
It may take a few attempts to get the shifting just right. If the shifting is still not perfect after adjusting the indicator lines, try backing the barrel adjuster out another half-turn and test again. If the issue persists, put the shifter and hub into 2nd gear and send a photo of the alignment of the 3 marks on the bellcrank for further troubleshooting.
It is worth noting that the process of adjusting the cable tension may vary slightly depending on the model of your Electra Townie bike. For specific instructions, refer to the owner's manual or seek assistance from a professional bike mechanic.
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The cable tension on a Shimano Nexus/Alfine 8-speed hub needs to be precise
The Shimano Nexus/Alfine 8-speed hub is a popular choice for bicycles, offering a range of gears for versatile riding. However, to ensure smooth and efficient performance, precise cable tension is critical.
The Nexus and Alfine 8-speed hubs are known for their weatherproof Rollerbrake and coaster brake options, although these can cause slight drag when not engaged. While the Rollerbrake and coaster brake are durable, they may not be the most efficient choice due to this drag. Additionally, smaller Rollerbrakes tend to overheat on long downhill rides.
When it comes to cable tension, the Nexus 8-speed hub has specific requirements. Firstly, the cable tension indicators, located at the top and bottom of the hub, play a crucial role. The top indicator is a small plastic window, while the bottom indicator is a small yellow painted piece of metal. By turning the barrel adjuster on the shifter, you can adjust the cable tension until the outboard yellow line moves. This adjustment process is essential to ensure the cable tension is just right.
Furthermore, the Nexus 8-speed hub has an indicator window, a unique feature that aids in achieving precise cable tension. This window displays a yellow indicator and two lines that should be aligned correctly. Fine-tuning this adjustment may be necessary by riding the bike and making small adjustments until it shifts perfectly. Additionally, the cable tension on the Nexus 8-speed hub is at its loosest in the lowest gear, which is worth noting during the adjustment process.
In terms of maintenance, relubrication with oil and waterproof grease is highly recommended to protect the mechanism from water damage. While lubrication is essential, it is crucial to avoid lubricating the cassette joint (cable attachment assembly). By following these maintenance tips and paying close attention to cable tension, you can ensure your Shimano Nexus/Alfine 8-speed hub performs optimally for a seamless riding experience.
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Adjusting the cable tension can help fix slipping gears
If you're experiencing slipping gears on your Electra Townie 8i, it's likely due to improper cable tension. This issue can usually be resolved by adjusting the cable tension to ensure smooth and precise gear shifts.
The Shimano Nexus 8-speed hub on the Electra Townie 8i requires precise cable tension for optimal performance. To adjust the cable tension, follow these steps:
- Locate the cable tension indicator: Find the small plastic window on the top of the hub or the small painted yellow piece of metal on the bottom. Flipping the bike over may make it easier to spot.
- Adjust the barrel adjuster: Turn the barrel adjuster on the shifter until you see the outboard yellow line move. This will adjust the cable tension and ensure it pulls the bracket backwards on the hub body correctly.
- Fine-tune adjustments: Ride your bike down the block and back to fine-tune the adjustments. Make sure all hub gears can be used smoothly.
- Indicator window: If your bike has an indicator window, you should see a yellow indicator with two lines. Adjust the cable tension until these lines are aligned correctly.
- Test ride: After making adjustments, test ride your bike to ensure the gear shifts are smooth and precise.
If you're uncomfortable making these adjustments yourself, you can take your bike to a shop, especially if it's a new bike. They should be able to adjust the cable tension and resolve the slipping gear issue without charge. However, if the problem persists or you notice unusual noises, it's best to consult a professional for further diagnosis and repair.
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Frequently asked questions
The barrel adjuster is located on the shifter. You can find the shifter by looking at the rear hub, where you will see a shifting chain that leads into the hub on the drivetrain side of the bike.
To adjust the barrel adjuster, you will need to turn it by hand until you see the outboard yellow line move. You can also refer to the indicator window, where you should see a yellow indicator and two lines that you can line up.
Firstly, check if your bike has an indicator window. If it does, put your bike in 4th gear and look at the part of the hub between the chain and the frame, which is called the "cassette joint". You should see two small yellow indicator lines. If these lines are not aligned, turn the barrel adjuster until they are. If this does not work, take your bike to a shop and they will fix it for you.
