Can anyone suggest an online store where I can buy a 38T chainring for my sons allmtn?

[pgrbff]

I live in Italy and simply can't find a replacement chainring for my sons bike, an allmtn 2.5. Most stores don't reply, and the chain has stretched from barely 0.5 to well over 0.75 whilst I've been searching.
Any help appreciated.

 

[All4Fun]

.75... take a new chain, with a bit luck you don't need a new chainring, maybe you will need a new cassette.

 

[pgrbff]

I have the chain and cassette but can't find chainring

 

[All4Fun]

If the chainring isn't damaged, just wear, i would try it with the new chain.
Normally one chainring lasts several chains and cassettes.

Btw, what type of motor has the 2.5?

 

[pgrbff]

I believe it's a Yamaha PW-X, 250W, 80Nm

 

[Zimmerframe]

Not 100% sure if this one will fit. Some of them are complete rings with intrinsic spiders and some are like this one, will depend on your bike.

They ship internationally.

Haibike sDuro Yamaha 38t Single Chainring – e-bikeshop.co.uk

This is the factory original Haibike sDuro ebike Yamaha single chainrings. Used as replacement for original worn out rings.

www.e-bikeshop.co.uk

Edit : just noticed it says the product is restricted to "our bike customers" .. so you might be out of luck on that one.

 

[pgrbff]

I have a feeling that is SRAM and I have no idea if it will fit the Deore groupset/chain on my sons bike.

 

[pgrbff]

I may have found the chainring, manufactured by FSA. Forgive me if this is a silly question but are FSA good? Might they be the OEM?

 

[Steve b]

If its the same set up as the All Mountain 7, I bought a 38T 104BCD Raptor Chainring from Superstar components works well

 

[pgrbff]

If its the same set up as the All Mountain 7, I bought a 38T 104BCD Raptor Chainring from Superstar components works well

I doubt it would be the same. The allmtn 2.5 is a budget model.

 

[Zimmerframe]

I doubt it would be the same. The allmtn 2.5 is a budget model.

The frame, brakes, suspension and everything else is different, but it looks like the chainring is probably the same. I know you have a parallel thread and I'm inclined to agree, you just need to buy a 104bcd 38t chainring. Take the 4 bolts out, clide it over the crank, put the new one on. Depending what pedals you're running, you might have to remove the drive side pedal from the crank.

I think the reason why there's so few results for chainrings for the bike is just because they run a standard 104bcd ring.

So as @Gary said in the other thread.

Why am I finding it so difficult to find a 38T 11x1 Deore m5100 chainring?

My son has a Haibike emtb, a special for which there is no printed spec document. I have purchased a new chain and cassette but cannot find a 38T M5100 chainring. Could this be a Haibike specific part? I cant see it on the Shimano website.

www.emtbforums.com

The rings you're looking for, which aren't in stock anywhere replace the chainring and the spider, you don't need to do that.

Looking at the wear on the frame, you might want to check that the clutch is engaged on the derailleur. Or possibly upgrade the derailleur to one with a clutch if it doesn't have one (stops it, and in turn, the chain slapping around as much)

 

[Gary]

If the chainring isn't damaged, just wear, i would try it with the new chain.
Normally one chainring lasts several chains and cassettes.

don't do that.
an old/worn chainring will increase your new chains wear rate fairly considerably
New chainrings cost £8

 

[pgrbff]

The frame, brakes, suspension and everything else is different, but it looks like the chainring is probably the same. I know you have a parallel thread and I'm inclined to agree, you just need to buy a 104bcd 38t chainring. Take the 4 bolts out, clide it over the crank, put the new one on. Depending what pedals you're running, you might have to remove the drive side pedal from the crank.

I think the reason why there's so few results for chainrings for the bike is just because they run a standard 104bcd ring.

So as @Gary said in the other thread.

Why am I finding it so difficult to find a 38T 11x1 Deore m5100 chainring?

My son has a Haibike emtb, a special for which there is no printed spec document. I have purchased a new chain and cassette but cannot find a 38T M5100 chainring. Could this be a Haibike specific part? I cant see it on the Shimano website.

www.emtbforums.com

The rings you're looking for, which aren't in stock anywhere replace the chainring and the spider, you don't need to do that.

Looking at the wear on the frame, you might want to check that the clutch is engaged on the derailleur. Or possibly upgrade the derailleur to one with a clutch if it doesn't have one (stops it, and in turn, the chain slapping around as much)

It's my sons bike, he's 13 and just wants to ride. I don't ride, bad back last 30 years, know nothing about bikes except how expensive it is to keep one going. He often forgets the clutch, but I discovered yesterday the "chain guide" that assists in keeping the chain on the chainring, was set for a 40T. the chain has always slipped off the chainring but Tom is a bit of a bull in a china shop, just down to his age.

 

[pgrbff]

don't do that.
an old/worn chainring will increase your new chains wear rate fairly considerably
New chainrings cost £8

I'm glad someone else chimed in on that.
Where do I get a chainring for £8? I haven't seen one for less than £40.

 

[pgrbff]

The frame, brakes, suspension and everything else is different, but it looks like the chainring is probably the same. I know you have a parallel thread and I'm inclined to agree, you just need to buy a 104bcd 38t chainring. Take the 4 bolts out, clide it over the crank, put the new one on. Depending what pedals you're running, you might have to remove the drive side pedal from the crank.

I think the reason why there's so few results for chainrings for the bike is just because they run a standard 104bcd ring.

So as @Gary said in the other thread.

Why am I finding it so difficult to find a 38T 11x1 Deore m5100 chainring?

My son has a Haibike emtb, a special for which there is no printed spec document. I have purchased a new chain and cassette but cannot find a 38T M5100 chainring. Could this be a Haibike specific part? I cant see it on the Shimano website.

www.emtbforums.com

The rings you're looking for, which aren't in stock anywhere replace the chainring and the spider, you don't need to do that.

Looking at the wear on the frame, you might want to check that the clutch is engaged on the derailleur. Or possibly upgrade the derailleur to one with a clutch if it doesn't have one (stops it, and in turn, the chain slapping around as much)

Are the teeth not a different pattern on different chainrings?
I'm only guessing but are there wide and narrow chainrings? His is a 11x1 M5100, do I need to specify a width as well?

 

[Gary]

Are the teeth not a different pattern on different chainrings?

No. every chain is the same pitch

Narrow/wide refers to the teeth being alternately narrow and then wide to better fill the space between coresponding inner chain links and improving chain retention

Chains do get ever so slightly narrower as number of cassette gears increases but 9,10,11&12 speed chains will all work fine on any narrow wide 104 4 bolt chainring you buy

 

[pgrbff]

No. every chain is the same pitch

Narrow/wide refers to the teeth being alternately narrow and then wide to better fill the space between coresponding inner chain links and improving chain retention

Chains do get ever so slightly narrower as number of cassette gears increases but 9,10,11&12 speed chains will all work fine on any narrow wide 104 4 bolt chainring you buy

mANY THANKS. hAPPY NEW YEAR