What is top swing and down swing front derailleur?

Top Pull means the cable is usually run along the top tube and comes down the seat-tube. “Swing” refers to the location of the pivot on the derailleur and is totally independent of the pull. IIRC Top Swing refers to a Low Clamp design (Only Shimano does this) and Down Swing refers to your typical high-clamp design.

What is top swing front derailleur?

Low clamp (aka top swing) This type of front derailleur mounts low down to a round seat tube with a band clamp. Because the clamp sits low on the frame (near the bottom-bracket junction) and the derailleur itself pivots above it, these are commonly also known as ‘top swing’ front derailleurs.

How does a Shimano front derailleur work?

An electric derailleur uses a small motor to move the cage. Shifting only occurs if the rider is pedaling. When shifting outward, the chain is flexed to the right and begins to rise up from the pedaling action. Modern chainrings are designed with shift ramps and features to help pick up the chain as it moves outward.

Are Shimano front derailleurs interchangeable?

In addition, front derailleurs are made for either 7, 8, 9 or 10-speed chains, but they can often be used interchangeably. If you are using a different chain than your derailleur was made to work with, the degree of adjustment you can expect will be lower than with a matched set.

Which way do you turn a barrel adjuster front derailleur?

Turn the barrel adjuster clockwise (a quarter turn at a time) to move the derailleur cage inward, away from the chain surface. Turn it the counterclockwise direction to move the cage outward.

How do bottom brackets work?

The bottom bracket on a bicycle connects the crankset (chainset) to the bicycle and allows the crankset to rotate freely. It contains a spindle to which the crankset attaches, and the bearings that allow the spindle and crankset to rotate. The chainrings and pedals attach to the cranks.

What is top swing?

Top swing (Low clamp) Newer standard, introduced for mountain bikes is the low clamp. The cage swings above the FD body. That way the body is closer to the BB and leaves more clearance for rear suspension linkage on the seat tube – for example.

What do H and L screws do on front derailleur?

Limit screws are marked “L” and “H.” The L-screw will stop the motion of the derailleur toward the smallest chainring. The H-screw will stop the motion of the derailleur toward the largest chainring.

What does H and L mean on a bike?

You need to adjust the high (H) and low (L) limit screws on the derailleur. Viewed from behind the bike, the H screw limits how far the derailleur can move to the right, while the L screw limits how far the derailleur can move to the left.

Can you mix shifters and derailleurs?

In many instances, it is possible to mix different levels of shifters and derailleurs from the same brand (e.g. Dura-Ace/Ultegra/105; Red/Force/Rival; Super Record/Record/Chorus), however it’s not safe to assume that this will always be the case.

Can I use MTB front derailleur on road bike?

MTB vs road FD Shimano road and MTB FDs have different cable pull ratio – that is the amount of FD movement for each mm of cable movement. This means that MTB FDs might not work well with indexed road shifters and vice versa.

Which way tightens a barrel adjuster?

Clockwise “tightens” the barrel adjuster, like a screw, so it threads INTO the shifter and shortens the cable path, loosening the cable. When you install new cables, make sure your barrel adjusters are fully tightened so you have maximum adjustment as your cables lengthen.

Do bottom brackets make a difference?

(Click here to read BikeRadar’s complete guide to bottom brackets.) According to Friction Facts’ latest report: “No statistically significant difference exists showing a general advantage or disadvantage of a standard type under similar loading conditions.

How often should you change a bottom bracket?

First, you should know when it’s best to service or clean your bottom bracket and crankset. At the very minimum, I do it about each season change, but normally more. Every three months or so I’ll take the cranks out and if it’s a threaded bb, I’ll remove the bb and do the full service.

How to adjust the height of a Shimano front derailleur?

How to Adjust a Shimano Front Derailleur. 1. Make sure your derailleur sits at the correct height. The derailleur should fall around 1 to 3 millimetres (0.039 to 0.118 in) above the large 2. Adjust the height with the positioning clamp. This clamp is what connects the derailleur to the frame of

What kind of derailleur does Shimano use?

The SHIMANO ALIVIO 3×9 speed front derailleur uses a Wide Link for longer durability and precise shifting. It is HYPERDRIVE compatible and designed specifically for triple chainring drivetrains.

What is a front derailleur on a bike?

A front derailleur on a bicycle moves the chain between the 3 front sprockets. It moves the top part of the chain and allows you to shift into different gears. They’re commonly attached to mountain bikes so you can adjust the gears for different terrain to make it easier to pedal the bike.

How to fix a front derailleur that comes out of alignment?

When the front derailleur comes out of alignment, it prevents the chain in the bicycle from moving between higher and lower gears. There is no need to panic if this happens and it is actually something that you can fix on your own! All you need is a Phillips screwdriver and about 20 minutes.