Ask the experts

[Touring_Sedan]

Nice one!! Was that a rock? Cant say ive seen something quite like that. Definitely qasnt shoe rub

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Sadly I was JRA..... then I wasn't.

[cydwhit]

Shimano Alfine is my best bet for a single speed FS chain tensioner, right?

I know, there's that euro one all the pro freerider guys are using, but I am not spending more than the price of a Zee derailleur to not have any gears.

Winter project bike involves irresponsible decisions.

[El Chupacabra]

Shimano Alfine is my best bet for a single speed FS chain tensioner, right?

I know, there's that euro one all the pro freerider guys are using, but I am not spending more than the price of a Zee derailleur to not have any gears.

Winter project bike involves irresponsible decisions.

Isn't the Alfine an internally geared hub? Not sure how that addresses the chain tension issue.

Otherwise, for a FS chain tensioner, I think you need a spring loaded one to deal with the chain growth - like a Surly Singleator.

[californiagrown]

Isn't the Alfine an internally geared hub? Not sure how that addresses the chain tension issue.

Otherwise, for a FS chain tensioner, I think you need a spring loaded one to deal with the chain growth - like a Surly Singleator.

Dumb question, but cant you just slap on an old shitty derraileur, and tension it to align with your one sprocket?

[toast2266]

Isn't the Alfine an internally geared hub? Not sure how that addresses the chain tension issue.

Otherwise, for a FS chain tensioner, I think you need a spring loaded one to deal with the chain growth - like a Surly Singleator.

They make an alfine chain tensioner so you can run an alfine hub on a full suspension bike.

No idea if the chain tensioner is any good or not though.

[cydwhit]

Yeah.

Shoulda been more clear, There's an Alfine spring loaded tensioner that according to PB forums circa 2014 is the cleanest way to account for chain growth.

I totally could go with a shitty derailleur and do the reverse tension (cable stop in the entrance hole) move, but for the price I might as well go with Alfine...unless someone here tells me not to.

Also just sorta tempted to have a machinist buddy whip out something that holds two jockey wheels and a spring. It's all pretty basic, seems like I could make one myself with some aluminum stock and a drill press.

Or even...bad idea alert, take apart my fucked up GX Eagle derrailleur and make one with a clutch....

[californiagrown]

Or even...bad idea alert, take apart my fucked up GX Eagle derrailleur and make one with a clutch....

This gets my vote. Free, prevents landfill waste, and will likely be easier work on the bike because of that clutch.

[toast2266]

Or get your machinist friend to make you a iscg mounted tensioner that tucks neatly right behind the crank (like how zerode does it), and that way you avoid having a bunch of bullshit hanging off your axle waiting to catch a rock.

[HAB]

Cy, I'm sure I have an ancient but not terribly borked derailleur in the parts bin somewhere I can send you.

[carlh]

I think the hanger on my hardtail is bent as I can't get it to shift well over more than a few gear. Going to buy a tool to align it, anyone have experience with the unior one? looks like a solid upgrade from the park but still a lot cheaper than the abbey and will work with 20" wheels for my cargo bike and when my son moves up soon.
https://uniorusa.com/products/hanger...34378811506732

[Dee Hubbs]

I think the hanger on my hardtail is bent as I can't get it to shift well over more than a few gear. Going to buy a tool to align it, anyone have experience with the unior one? looks like a solid upgrade from the park but still a lot cheaper than the abbey and will work with 20" wheels for my cargo bike and when my son moves up soon.
https://uniorusa.com/products/hanger...34378811506732

Any of the tools will be fine.
It’s not like you’re going to use it daily, like in a shop.
I’ve used the Abby, Unior, Park Tool and one other generic I can’t remember the name of.
That’s the order I’d rank them, but they are all decent.
There are a bunch of Abby knockoffs on eBay/Amazon for $30 that I’d buy to save over $100.

[sethschmautz]

Any of the tools will be fine.
It’s not like you’re going to use it daily, like in a shop.
I’ve used the Abby, Unior, Park Tool and one other generic I can’t remember the name of.
That’s the order I’d rank them, but they are all decent.
There are a bunch of Abby knockoffs on eBay/Amazon for $30 that I’d buy to save over $100.

DH, would you mind linking to one of those options? Sounds like it would fit into my budget.

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[Dee Hubbs]

- Park tool knock off
- Abby like knock off
- another Abby type knockoff.
I have zero experience with these, but for using 4-5 times a year I don't feel you need to buy a professional grade tool.

[carlh]

this looks like a solid park knockoff for a bit cheaper. I thick I am going to buy it and if it sucks I can use it once and return. I like the looks on the unior but I am also a cheap ass.

https://www.amazon.com/CycloSpirit-D...s%2C161&sr=8-3

[jm2e]

Kinda bummed about this happening.

Edit to add: I quite dislike my Park DAG tool. The tolerances are shit, so it leaves me feeling like I made a big problem a smaller problem that I never actually fixed. It’s also clumsy to use and takes up way too much space in my tool drawer.
/rant
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[Dee Hubbs]

Edit to add: I quite dislike my Park DAG tool. The tolerances are shit, so it leaves me feeling like I made a big problem a smaller problem that I never actually fixed. It’s also clumsy to use and takes up way too much space in my tool drawer.
/rant

A hanger does not need to be aligned within fractions of a mm. The feller gauge on Park Tool DAG needs within 4mm of the rim in both the horizontal and vertical plane to ensure the derailleur hanger is straight. There is maybe 1mm of tolerance slop when screwed into the hanger.

[XXX-er]

I liked using that park tool when I had acess to one cuz a straight hanger is pretty much a slam dunk in one go while eyeballing it from back behind the bike/ forming might take a couple of trys which requires removing the der, but however you go about the adjustment if you got it straight its straight and you won't even have to adj the cable

[jm2e]

There is maybe 1mm of tolerance slop when screwed into the hanger.

Maybe I got a bad one? It’s got a lot of wiggle.



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[carlh]

I bought the cyclospirit park knock-off. it worked well enough to fix my problem. I will likely replace the pin with a long bolt/thread rod and a nut so I can get more repeatable measurements but it is good enough for home use.

[Dantheman]

What are the odds that the new e13 Helix cassettes won't have major issues? They look pretty sweet.

[grskier]

What are the odds that the new e13 Helix cassettes won't have major issues? They look pretty sweet.

The TSR+s I ran were good for 250 miles and 650 miles..... I hope the new ones last longer.. they are pimp looking though. Sounds like the processing of adding the color should make those dinner plates last a little longer.

[grskier]

Kinda bummed about this happening.

Edit to add: I quite dislike my Park DAG tool. The tolerances are shit, so it leaves me feeling like I made a big problem a smaller problem that I never actually fixed. It’s also clumsy to use and takes up way too much space in my tool drawer.
/rant
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I took me 2-3 times looking at that to see you snapped that linkage. what bike is that?

[toast2266]

What are the odds that the new e13 Helix cassettes won't have major issues? They look pretty sweet.

I've got $5 on brutal creaking and another $3 on substantial damage to freehub body.

[skaredshtles]

What are the odds that the new e13 Helix cassettes won't have major issues? They look pretty sweet.

70-30 in favor of having issues.

[grskier]

I've got $5 on brutal creaking and another $3 on substantial damage to freehub body.

70-30 in favor of having issues.

But... the blingz