I swap between 2 wheelsets, one for more climbing(36t cassette) and one for general road riding(30t cassette). I usually dont touch my b screw, because the wheels are both DTSwiss hubs, same rotors, all but the cassette. The gap on the 30t isnt that bad as the one in the video, my shifting works well, and so i just dont touch it.
I have no idea why you think the hub or rotor would matter. But I always say if aint broke dont fix it. Although making that small adjustment each time would probably smooth things up a bit more than you might expect
I got a new bike and i wasted 1 hour on limit screws and cable length trying to adjust the rear derailleur wondering why it doesn't shift properly with them perfectly set, till i realised the problem was at the b screw😂
That won't necessarily work for super wide-range cassettes. On those, you have to shift to the second cog and make sure the jockey pulley is barely clears the first.
You should always adjust the b tension in the lowest gear. The highest is irrelevant. This should be adjusted on every bike with any kind of cassette or derailleur. Just basic set up stuff
@@zwicker5585 Most of the time. With 1x and 3+ tooth jumps at the low end, you have to adjust the B so the jockey pulley clears the next larger cog, too.
@@zwicker5585 No. Some cassettes have such a wide range that a downshift only pushes the jockey pulley and chain into the side of the next cog. Here's a video showing SRAM Eagle adjustment. SRAM specs a 15 mm gap between the largest cog and the jockey pulley. This is so the pulley can clear the largest cog on the downshift. th-cam.com/video/HK62kJ6gsVU/w-d-xo.html
@@monkmchorning That would be because the b tension screw wasn't set up as its supposed to be 🤦 Ie. aligned to the largest cog... Or because the derailleur isn't spec'd for that size of cassette.
But bikes don't shift gears to be able to accelerate, torque and the speed you demand are suitable for single gears, unless gradient change which still you change once. I see the importance for servicing but I dont see the need on a bike to "shift fast" since its not a car which leverages high ratio gears for off the line acceleration.
In some cases, the rear derailleur will not go into the big cog if you are in the big ring. Also, the b limit setting is easier to set when you arr small-big.
I swap between 2 wheelsets, one for more climbing(36t cassette) and one for general road riding(30t cassette). I usually dont touch my b screw, because the wheels are both DTSwiss hubs, same rotors, all but the cassette. The gap on the 30t isnt that bad as the one in the video, my shifting works well, and so i just dont touch it.
My b screw is completely open yet has gap between the chain.
It's like 1 cm gap
I have no idea why you think the hub or rotor would matter. But I always say if aint broke dont fix it. Although making that small adjustment each time would probably smooth things up a bit more than you might expect
Thanks for the great info man! Stay safe!
Wow so easy and worked great. Just a couple twists to get the chain closer to the cassette and now I’m shifting easy breezy
Actually, that 2mm hex key could be used to set the distance between the cog and chain.
I got a new bike and i wasted 1 hour on limit screws and cable length trying to adjust the rear derailleur wondering why it doesn't shift properly with them perfectly set, till i realised the problem was at the b screw😂
well atleast it kept you busy
This is the most helpful video I sow today
Awesome
Tanks
if your derailleur still jumps on higher gear you might need to Shorten the chain only if your chain is long
I wish there was guide or manual for every groupsets online?!
You dont need one. They are all adjusted the same. B tension and high/low limit is the same principals for every bike
That won't necessarily work for super wide-range cassettes. On those, you have to shift to the second cog and make sure the jockey pulley is barely clears the first.
You should always adjust the b tension in the lowest gear. The highest is irrelevant. This should be adjusted on every bike with any kind of cassette or derailleur. Just basic set up stuff
@@zwicker5585 Most of the time. With 1x and 3+ tooth jumps at the low end, you have to adjust the B so the jockey pulley clears the next larger cog, too.
@@monkmchorning if you adjust the b tension to the largest cog, like youre supposed to, the smaller ones are irrelevant. Always.
@@zwicker5585 No. Some cassettes have such a wide range that a downshift only pushes the jockey pulley and chain into the side of the next cog. Here's a video showing SRAM Eagle adjustment. SRAM specs a 15 mm gap between the largest cog and the jockey pulley. This is so the pulley can clear the largest cog on the downshift. th-cam.com/video/HK62kJ6gsVU/w-d-xo.html
@@monkmchorning That would be because the b tension screw wasn't set up as its supposed to be 🤦 Ie. aligned to the largest cog... Or because the derailleur isn't spec'd for that size of cassette.
Effective?
thank you xQc
Enfin quelque chose de valable sur tik tok !!!😊
ahah merci!
My wife has been complaining about slow changes, might give this a look
Thx
What if you have 2 sets of cassettes?
Then adjust accordingly every time you swap cassettes.
‘Does your shifting sucks is slow?’
This guy is saving us money!!
Man ask your boss for a raise, you need shoes 😂
I got crabs
Not aero
There's an app for that.
There's cream for that
I hate when they record videos with switching between gears ultra fast. It doesant realy show how the derailleur works.
The cassette is so dirty watching this video makes me wanna clean it for you
Youre insane 😂
good explanation. thanks. i'v e just tweaked my Ultegra (on my pinarello !
Ultegra 😂🤢🤮
@@bikesgoodgasbadwhat's wrong with ultegra
Bro my chain has 20cm up down play and from my 21 gear shifter like 3 gears work😂
But bikes don't shift gears to be able to accelerate, torque and the speed you demand are suitable for single gears, unless gradient change which still you change once.
I see the importance for servicing but I dont see the need on a bike to "shift fast" since its not a car which leverages high ratio gears for off the line acceleration.
probably the people who buy electronic groupsets and dont no anything about actual mechanics on their bikes and how to fix it
Applies to alot of people with mechanical bikes too. Basically no one who owns a bike know how to fix it
It's cause it's shimano
Just fucking write B screw in the fucking title so we don't waste time
Shifting the front derailleur doesn't change the location of the upper pulley
He just wants to make sure you get into the big ring on the cassette? Di2 doesn't want to know about cross chaining.
@CrabgrassFarmer cross chaining is virtually a non-issue these days. Chains are significantly more flexible than they used to be
In some cases, the rear derailleur will not go into the big cog if you are in the big ring. Also, the b limit setting is easier to set when you arr small-big.
Someone who doesn't know this, is just someone who doesn't know what a bike spells like.
This is not true, no one actually knows what that B screw does. 😂.
Effective?