What does a derailleur guard do
A derailleur guard protects the mech primarily from lateral falls and side hits to the body from objects with a great surface area. A branch or a rock of the right shape could still hit the low pulley and the cage of the derailleur from below. Furthermore, derailleur guards offer protection only from low impact hits.
Why is my derailleur hitting my spokes
Often, the derailleur hits the spokes when its hanger is bent following a heavy hit. If that's not the case, it could be due to wobbly spokes, misadjusted limit screws, or incorrect cable tension.
Does chain length affect speed
Originally Answered: Does the length of chain matters when it comes to speed and efficiency of the bicycle? The shorter the better, Because longer chain will have more sag and that sag gives result in more lag.
When should I shorten my bike chain
Removing the chain
You must ensure that the gap between the pins corresponds to 12 inches. If it extends to more than 12 ⅛ inches, it is time to replace your bike chain or shorten the chain. If you counted the links right, you just need to loosen the back wheel by pulling it backward.2 Feb 2022
Is a derailleur guard necessary
A Derailleur Guard Doesn't Offer Universal Protection
During a serious collision, the guard is very likely to bend and hit or compress the derailleur. Consequently, derailleur hangers are needed even when the bike has a derailleur guard because they further minimize the negative consequences of a crash.
Is rear derailleur guard important
Are derailleur guards important? Often a guard is on a bike geared toward kids or less experienced riders. If you are likely to crash (or "ghost ride" your bike) then a guard may help. If you don't crash then you don't need a guard.
How do I stop my rear derailleur from hitting spokes
a) Low-Limit Screw (L-Screw)
The Low-Limit screw, market L, prevents the derailleur from moving towards your spokes. When well adjusted, the screw allows the chain to settle in the biggest cog when pedaling without the chain skipping or rubbing against the spokes.
What causes chain rub
The reason the chain rubs is because the cable is too loose. And when it's too loose, shifting onto the large chainring results in only a partial shift. With sufficient tension on the derailleur cable, the derailleur cage will move to its full outside limit and there will be clearance for the chain – and no rubbing.
Is it normal for chain to rubbing on front derailleur
Front Derailleur Performance
The front derailleur should shift the chain between chainrings without throwing the chain off the extreme outer and inner rings. It is possible that the front derailleur will rub the chain slightly even on properly adjusted bikes.31 Aug 2015
Why is my chain hitting my front derailleur
The symptom of a front derailleur cable that isn't tight enough is chain rub when it's on the largest chainring and smaller rear cogs. … The reason the chain rubs is because the cable is too loose. And when it's too loose, shifting onto the large chainring results in only a partial shift.