0
No. That is, if you're referring to the newer internally-geared 7-speed hubs from Shimano (Nexus) and SRAM (S7). Both of these have seven internal gear ratios (like the old 3-speeds on steroids) and a coaster brake. They are installed using a single chainring at the cranks and a single rear cog. So no derailleurs needed. BTW, the Nexus (or its sibling the Alfine) hub from Shimano has been made in 4, 7, 8 and 11 ratios.
What else can I help you with?
What are the different types of derailleurs available for bikes and how do they impact the overall performance of the bike?
There are two main types of derailleurs for bikes: front and rear. Front derailleurs control the movement of the chain between the chainrings, while rear derailleurs shift the chain across the cassette. The type of derailleurs used can impact the bike's performance by affecting the smoothness and speed of gear changes, as well as the overall efficiency of power transfer. High-quality derailleurs can provide more precise and reliable shifting, leading to a better riding experience.
What are the differences between Shimano SGS and GS rear derailleurs?
Shimano SGS rear derailleurs have a longer cage length compared to GS rear derailleurs. This means that SGS derailleurs can accommodate a wider range of gears, making them suitable for bikes with a larger number of gears. GS rear derailleurs, on the other hand, have a shorter cage length and are typically used for bikes with fewer gears.
What are the different types of bike derailleurs and how do they affect the performance of a bicycle?
There are two main types of bike derailleurs: front and rear. Front derailleurs control the movement of the chain between the chainrings, while rear derailleurs shift the chain across the cassette. The type and quality of derailleurs can affect the bike's shifting speed, accuracy, and overall performance. Higher-end derailleurs are typically lighter, more durable, and provide smoother and more precise shifting, resulting in better performance on the bike.
What are the compatibility options for a Shimano crankset 10 speed?
Shimano 10-speed cranksets are compatible with Shimano 10-speed drivetrains, including front derailleurs, rear derailleurs, and shifters. It is important to ensure that all components are from the same speed group to ensure proper functionality and performance.
What are the different types of chain derailleur systems used in bicycles?
There are two main types of chain derailleur systems used in bicycles: front derailleurs and rear derailleurs. Front derailleurs move the chain between the chainrings at the front of the bike, while rear derailleurs shift the chain across the cassette at the rear wheel. These systems work together to change gears and adjust the tension of the chain for a smoother ride.
What are the different types of derailleur sets available for bicycles?
There are two main types of derailleur sets for bicycles: front derailleurs and rear derailleurs. Front derailleurs control the shifting of the chain between the front chainrings, while rear derailleurs control the shifting of the chain between the rear cassette gears. These components work together to allow cyclists to change gears and adjust their pedaling resistance while riding.
What are the different types of bike gear derailleur available in the market and how do they differ in terms of performance and functionality?
There are three main types of bike gear derailleurs available in the market: front derailleurs, rear derailleurs, and electronic derailleurs. Front derailleurs shift the chain between the front chainrings, while rear derailleurs shift the chain between the rear cassette gears. Electronic derailleurs use electronic signals to shift gears instead of mechanical cables. In terms of performance and functionality, front and rear derailleurs are typically more affordable and easier to maintain, but may require more manual adjustment. Electronic derailleurs offer faster and more precise shifting, as well as the ability to customize shifting patterns. However, they are usually more expensive and may require specialized tools for installation and maintenance. Ultimately, the choice of derailleur type depends on individual preferences and budget.
What are the features and specifications of a 15-speed bike?
A 15-speed bike typically has multiple gears that allow for a wide range of speed options. These bikes often have a combination of front and rear derailleurs to shift between the gears smoothly. The specifications may vary, but common features include a lightweight frame, durable tires, and comfortable handlebars for a smooth and efficient ride.
What are the gears on a bike called?
There are internally geared bikes, where all the gears are tucked away inside the hub and then there are externally geared bikes, with a stack of differently sized sprockets on the outside of the hub. Apart from that they're just called gears.
What are the different types of derailleurs used on a bike and how do they affect the bike's performance?
There are two main types of derailleurs used on a bike: front and rear. The front derailleur shifts the chain between the chainrings, while the rear derailleur shifts the chain between the cogs on the rear wheel. The type of derailleurs used can affect the bike's performance by determining the number of gears available, the smoothness of shifting, and the overall efficiency of the drivetrain.
What are the key features and benefits of XT rear derailleurs for mountain bikes?
XT rear derailleurs for mountain bikes are known for their durability, precision shifting, and smooth performance. They offer improved chain retention, reduced chain slap, and enhanced stability on rough terrain. The benefits include better control, faster gear changes, and overall improved riding experience for mountain bikers.
What are the key differences between Shimano rear derailleurs for comparison?
Shimano rear derailleurs differ in terms of their speed compatibility, weight, material construction, and overall performance. These differences can impact shifting precision, durability, and overall riding experience.
