*I have this same Altus rear derailleur and I replaced the 2 jockey wheel pulleys with sealed bearing aluminum 16 tooth and 14 tooth pulleys. This thing not only looks better it also shifts much better and swear it gives my bike more top end speed.*
@@danfuerthgillis4483 *It really helps if you upgrade your Altus to the 16 tooth and 14 tooth aluminum sealed bearing pulley, I paid $30 for both pulleys.*
I admire your enthusiasm but I’m afraid your information is incorrect. The jockey wheel and idler pulley have no affect on the speed the bike travels, they are used to keep tension on the chain while moving it up and down your rear cassette. That’s definitely a nice upgrade though!
Yes but I also had to shorten the chain by 2 links to get less chain going through the larger pulley wheels. Larger pulley wheels carry more chain than smaller pulley wheels thus keeping more teeth on the chain at all times. This means the chain is running more straight during the back derailleur section. It's been well established that due to the larger number of teeth on the jockey wheels it does effect the chain which affects how you pedal. You need to remove 2 chain links so the jockey wheels move more forward. The Altus is a good add-on from a cheaper derailleur.
@@detmer87 Actually no, look at the "ceramic speed oversized jockey wheels" derailleur addon and you will see why it's needed (albeit with a cheaper version ) 😂 www.ceramicspeed.com Oversized Pulley Wheel Systems (OSPW Systems) | CeramicSpeed
The only part of the chain doing the work is the top, it's pulled forward from the crank. The rest is slack management, so nothing changes with the speed.
Indeed as the chain is only applied at one time on 1/4 of the ring. The bigger jockey wheels require more chain links. I copied my current Altus setup to this setup www.google.com/imgres?imgurl=https%3A%2F%2Fwww.wigglestatic.com%2Fproduct-media%2F100385076%2FCeramicspeed-9100.jpg%3Fw%3D430%26h%3D430%26a%3D7&imgrefurl=https%3A%2F%2Fwww.wiggle.co.uk%2Fceramicspeed-ospw-system-r9100%2F&tbnid=oVVdyxhDuatcdM&vet=12ahUKEwjrkcKL-pjkAhUHYawKHcreA0UQMyg8egUIARCdAQ..i&docid=zgLdIdNSW3KaAM&w=430&h=430&ved=2ahUKEwjrkcKL-pjkAhUHYawKHcreA0UQMyg8egUIARCdAQ As you can see I added the smaller Jockey wheel at the top and kept the bigger bottom one. They also have a dual ( same size big pulley wheels) bottom derailleur part. I like the smaller and big bottom jockey wheel setup as this allows for more chain links but more smooth shifting.
Oversized pulley can save you 0.5% from each pulley. Although aerodinamic and gravitational losses not counted, this 1watt will be easily compensated. On cheaper jockey wheels there no bearings, so going biggers means going to slower rotation, which is better. Shimano deny benefits of oversized pulley. Spirtsmans using both. Also 15 teath pulley wheel can be a question of using bigger renge of cassette.
Switched from Shimano Acera to Altus. I find Altus shifting delayed . My chain just started slipping over the chain rings in some of the gears . Just noticed my chain and cassette ring on front worn out but still odd how the chain slip started a few days after the derailleur switch over .
The Altus requires a slagged shifting push. You slide the gear change as in pushing it till it engages. Slapping the shift in will cause some delay as I found out as well. Watch out for the chain line l too.
Raul Lopes Thanks for the comment. The Shimano Altus was a good addition to this every day bike. The derailleur that came with it was very cheap ( garbage actually). Bigger pulleys make a big difference and the Altus is really good.
I like how Ceramic Speed sells these oversize derailleur Systems for $800+ 😂 what a joke. This Altus in my opinion is the best budget 7 speed derailleur you can buy. I have 2 installed in my old daily bikes still ( black bike in this video) going to this day. I do take out the jockey wheels once in a while to clean the wheels and lube the inside shafts of the through cylinders ( since these are not using real bearings) by adding some grease inside of the cups and cylinder shafts and screws.
www.ceramicspeed.com/en/cycling/shop/oversized-pulley-wheel-systems/ And www.velonews.com/gear/tour-de-france-pros-are-using-oversize-rear-derailleur-pulleys-should-you/ Marginal gains but looks good 😂
From a price standpoint it does seem like cheap, however it has better jockey wheels than a $120 (cups) jockey wheels based derailleurs. With cheaper bikes as this one the tolerances are wider so you can not use expensive tighter tolerances derailleurs for example. The Altus IMO blows away the Tiagra derailleur by a long shot. The bigger wheels help with the shifting and less noise as they have more teeth to engage in the chain. This is why Pros are switching to the Ceramic oversized jockey wheels, faster speeds due to less chain, and very low drive train noise as Carbon frames are notorious for amplification of chain noise.
*I have this same Altus rear derailleur and I replaced the 2 jockey wheel pulleys with sealed bearing aluminum 16 tooth and 14 tooth pulleys. This thing not only looks better it also shifts much better and swear it gives my bike more top end speed.*
It’s an excellent Derailleur, it’s tough and can handle more abuse than the Tiagra or higher.
@@danfuerthgillis4483 *It really helps if you upgrade your Altus to the 16 tooth and 14 tooth aluminum sealed bearing pulley, I paid $30 for both pulleys.*
@@bigtexas7580 where did you get yours?
the 16 tooth and 14 tooth pulley is compatible to that rear derailleur? thanks
HUH no kidding huh?
Update this derailleur is still going strong after all this time, thousands of km added on it zero issues.
Glad to know since i was planning to buy one aswell.. whats ur full feedback on it any cons?
I admire your enthusiasm but I’m afraid your information is incorrect. The jockey wheel and idler pulley have no affect on the speed the bike travels, they are used to keep tension on the chain while moving it up and down your rear cassette. That’s definitely a nice upgrade though!
Yes but I also had to shorten the chain by 2 links to get less chain going through the larger pulley wheels. Larger pulley wheels carry more chain than smaller pulley wheels thus keeping more teeth on the chain at all times. This means the chain is running more straight during the back derailleur section. It's been well established that due to the larger number of teeth on the jockey wheels it does effect the chain which affects how you pedal. You need to remove 2 chain links so the jockey wheels move more forward. The Altus is a good add-on from a cheaper derailleur.
@@danfuerthgillis4483 The talk about speed boost is total bull shit.
@@detmer87 Actually no, look at the "ceramic speed oversized jockey wheels" derailleur addon and you will see why it's needed (albeit with a cheaper version ) 😂 www.ceramicspeed.com
Oversized Pulley Wheel Systems (OSPW Systems) | CeramicSpeed
@@detmer87 It's very interesting that you had no reply to the Ceramicspeed comment, since you know they use "OVERSIZED" jockey wheels for a reason!
The only part of the chain doing the work is the top, it's pulled forward from the crank. The rest is slack management, so nothing changes with the speed.
Indeed as the chain is only applied at one time on 1/4 of the ring. The bigger jockey wheels require more chain links. I copied my current Altus setup to this setup www.google.com/imgres?imgurl=https%3A%2F%2Fwww.wigglestatic.com%2Fproduct-media%2F100385076%2FCeramicspeed-9100.jpg%3Fw%3D430%26h%3D430%26a%3D7&imgrefurl=https%3A%2F%2Fwww.wiggle.co.uk%2Fceramicspeed-ospw-system-r9100%2F&tbnid=oVVdyxhDuatcdM&vet=12ahUKEwjrkcKL-pjkAhUHYawKHcreA0UQMyg8egUIARCdAQ..i&docid=zgLdIdNSW3KaAM&w=430&h=430&ved=2ahUKEwjrkcKL-pjkAhUHYawKHcreA0UQMyg8egUIARCdAQ
As you can see I added the smaller Jockey wheel at the top and kept the bigger bottom one. They also have a dual ( same size big pulley wheels) bottom derailleur part. I like the smaller and big bottom jockey wheel setup as this allows for more chain links but more smooth shifting.
Interesting. Thanks for posting.
Oversized pulley can save you 0.5% from each pulley. Although aerodinamic and gravitational losses not counted, this 1watt will be easily compensated. On cheaper jockey wheels there no bearings, so going biggers means going to slower rotation, which is better. Shimano deny benefits of oversized pulley. Spirtsmans using both. Also 15 teath pulley wheel can be a question of using bigger renge of cassette.
Drivetrain efficiency its mostly bending chain on 4 radiuses, thats why its important.
@@осипакопьянц All good points here.
Switched from Shimano Acera to Altus. I find Altus shifting delayed . My chain just started slipping over the chain rings in some of the gears . Just noticed my chain and cassette ring on front worn out but still odd how the chain slip started a few days after the derailleur switch over .
The Altus requires a slagged shifting push. You slide the gear change as in pushing it till it engages. Slapping the shift in will cause some delay as I found out as well. Watch out for the chain line l too.
I have the same cheap gear you have and I’m buying the same Altus because I’m having trouble with the cheap one.
Raul Lopes Thanks for the comment. The Shimano Altus was a good addition to this every day bike. The derailleur that came with it was very cheap ( garbage actually). Bigger pulleys make a big difference and the Altus is really good.
This Altus is ok for road bikes?
Putting it on my schwinn boundary the derailer on it is junk broke second ride.
I like how Ceramic Speed sells these oversize derailleur Systems for $800+ 😂 what a joke. This Altus in my opinion is the best budget 7 speed derailleur you can buy. I have 2 installed in my old daily bikes still ( black bike in this video) going to this day. I do take out the jockey wheels once in a while to clean the wheels and lube the inside shafts of the through cylinders ( since these are not using real bearings) by adding some grease inside of the cups and cylinder shafts and screws.
@@danfuerthgillis4483 Will do thanks for the heads up.
@@JS-lv5pn Your welcome, take care!
It's all in your head. Larger cogs aid in chain wrap capacity. Nothing to do with gearing.
www.ceramicspeed.com/en/cycling/shop/oversized-pulley-wheel-systems/
And www.velonews.com/gear/tour-de-france-pros-are-using-oversize-rear-derailleur-pulleys-should-you/
Marginal gains but looks good 😂
Does it have a b screw
Yes the Altus has it, and this derailleur has seen thousands of km, dirt road terrain, and not one mm of movement.
Did you put your altus rd on your rb?
Yes I bought a second one and took out the bottom cage and pulleys and transferred them to the RD that is on my Sava road bike.
@@danfuerthgillis4483 is it good for 12tt smallest cog?
@@keithrodejo6651 Yup. 11t should be ok
Altus is also crap.
From a price standpoint it does seem like cheap, however it has better jockey wheels than a $120 (cups) jockey wheels based derailleurs. With cheaper bikes as this one the tolerances are wider so you can not use expensive tighter tolerances derailleurs for example. The Altus IMO blows away the Tiagra derailleur by a long shot. The bigger wheels help with the shifting and less noise as they have more teeth to engage in the chain. This is why Pros are switching to the Ceramic oversized jockey wheels, faster speeds due to less chain, and very low drive train noise as Carbon frames are notorious for amplification of chain noise.