Bosch gen 4 chainring e13

[Rostle32]

I’ve just swapped over my drivetrain completely, from 12 speed shimano to 10 speed, due to supply shortage/prices of 12 speed stuff!
All gone sweet except my front chainring is sucking slightly due to being 2500mile old !??
Trying to source a Bosch gen4 E13 chainring 34T 52mm boost, steel
anyone know of a supplier who can ship into UK ?
All help greatly appreciated ??

 

[Rostle32]

Well, panic over !! Managed to source a new chainring ( OE) shipping is dear and due in stock in May, but .....
here is a link :-
E*THIRTEEN Chainring e*spec Direct Mount Bosch CX Gen4 | Steel 34 teeth

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Item number:
44162-001
Product weight:
182 g
Manufacturers:
e*thirteen


29,50 €
MSRP: 29,90 €
You save 1,34%, that is 0,40 €
including 19% VAT. , excl. Shipping costs / shipping time info
Availability:
May 2021

version
34 TEETH Please select34 teeth36 teeth38 teeth


ADD TO BASKET
WISHLISTQUESTION ON ITEM

 

[Dr. Ergal]

I'm still wondering why E13 does not produce a 30T or 32T chainring
It would be perfect to me (34T is too big for my personal usage of the bike, with the minimum motor assistance I can)

 

[Mack-tigre]

Is there any 32 or 30 t chainring available to bosch gen 4?

I cant find anything

 

[Gyre]

Is there any 32 or 30 t chainring available to bosch gen 4?

I'd guess your best chance to make that happen is to get the FSA 4-bolt spider and pick up a 104bcd chainring with 30 or 32t.

FSA W0134 Bosch Gen 4 Spider BCD104 50mm Chainline, Black - Modern Bike

 

[Mack-tigre]

I'd guess your best chance to make that happen is to get the FSA 4-bolt spider and pick up a 104bcd chainring with 30 or 32t.

FSA W0134 Bosch Gen 4 Spider BCD104 50mm Chainline, Black - Modern Bike

Thank you! I didnt now that option.

 

[Gyre]

Thank you! I didnt now that option.

I'm curious to try it myself. Let us know how it goes if you give it a shot.

 

[Mack-tigre]

I'm curious to try it myself. Let us know how it goes if you give it a shot.

 

[GrandesRoues]

So, did someone put a 30T or 32T on his Bosch crankset ?

 

[Gyre]

So, did someone put a 30T or 32T on his Bosch crankset ?

Yes, been using 32T with the FSA spider. It's been fine and makes cranking up steep pitches in Eco substantially easier.

 

[Mteam]

When my 34 tooth chainring has worn out, I'm going to go for 32 tooth. so its good to hear it works fine.

I was wondering if you needed to tell the motor software you had a 32 tooth ring, because the chainring size is a parameter in the software, but it obviously works fine for you

 

[Gyre]

When my 34 tooth chainring has worn out, I'm going to go for 32 tooth. so its good to hear it works fine.

I was wondering if you needed to tell the motor software you had a 32 tooth ring, because the chainring size is a parameter in the software, but it obviously works fine for you

I made the change probably around last August give or take, so it's been awhile. I haven't been to a dealer since then so if it's a dealer controlled parameter I definitely didn't change anything.