Technical sheet

E-thirteen E-Spec chainring

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15 Reviews

9 Questions

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Features of E-thirteen E-Spec

Product description of E-thirteen E-Spec chainring

Description summary

Upgrade your Bosch e-bike with the E-THIRTEEN E-Spec Direct Mount Chainring. Forged from high-strength steel, it offers superior durability and wear resistance for demanding e-bike power. The updated M3 wide/narrow tooth profile ensures exceptional chain retention, drastically reducing drops and eliminating chain noise for a smoother, quieter ride. This robust, lightweight ring provides uncompromising performance and value, letting you conquer any trail with confidence. Compatible with 11s and 12s drivetrains

E-THIRTEEN E-Spec Direct Mount Chainring for Bosch E-Bikes

Unleash the full potential of your electric mountain bike with the E-THIRTEEN E-Spec Direct Mount Chainring, meticulously engineered for the high-torque demands of modern E-bikes. Specifically designed for seamless integration with Bosch motor systems, this chainring is the ultimate upgrade for riders seeking uncompromising performance, exceptional durability, and a whisper-quiet ride. It stands as a testament to intelligent design, providing a high-performance solution at an incredible value for today´s powerful electric bikes.

Electric bike motors place immense strain on drivetrain components, requiring parts that are built to last. The E-Spec chainring directly addresses this challenge. Our new e*spec Direct Mount chainrings are forged from high-strength steel, offering a significantly longer lifespan and superior wear resistance compared to conventional alloy rings. This robust construction ensures that you can tackle steep, technical climbs and put down maximum power without worrying about premature wear. This focus on longevity means more time riding and less time in the workshop, making it a cost-effective and reliable choice for dedicated e-bike enthusiasts.

Performance on the trail is defined by efficiency and reliability. At the heart of the E-Spec chainring is our updated M3 wide/narrow tooth profile. This advanced technology is engineered to provide phenomenal chain retention, drastically reducing the chances of a dropped chain, even when navigating the roughest and most unpredictable terrain. By optimizing the interface between the chain and the ring, the M3 profile also works to eliminate distracting chain noise and reduce overall system wear. The result is a smoother, quieter, and more efficient power transfer from the motor to the rear wheel, allowing you to focus completely on your line and enjoy the ride. The minimal aesthetic and lightweight design prove that durability doesn´t have to come at the expense of style or performance. Compatible with both 11s and 12s drivetrains, it offers the versatility needed for a wide range of modern e-bike setups.
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Features:

* Durable, lightweight design, minimal aesthetics, and updated M3 tooth profile.
* Chain Retention: Updated M3 wide/narrow tooth profile eliminates chain noise and reduces overall system wear.

Specifications:

* Compatibility: Bosch™
* Material: Steel
* Weight: 34T: 180g

Specifications

Manual

Technical specifications of E-thirteen E-Spec

Features of E-thirteen E-Spec

Color Silver

Color

Silver

Recommended Use E-bikes

Recommended Use

E-bikes

Speed 11s

Speed

11s

12s

Direct Mount Bosch

Direct Mount

Bosch

BCD Direct Mount

BCD

Direct Mount

Key differentiators

Technology in E-thirteen E-Spec chainring

Energy rating

Warnings

5 / 5

15 Reviews

What our customers are saying about E-thirteen E-Spec chainring

This e-bike chainring offers excellent quality and performance for Bosch CX line Gen 4 systems. Buyers report it´s a solid, original equipment quality upgrade that fits perfectly on various bikes, including Cube Stereo Hybrid models. The 34-tooth option is noted for good value, with initial reports suggesting durability

As described

2026/09/10

Pawel

The offset is adjustable with a shim, approximately 13.5 - 15 mm. Fits the Orbea Wild H10 2025. Quality is okay. Very good price

e-thirteen sprocket

2026/03/13

Mariusz

High-quality sprocket, fast delivery, everything OK. I recommend

Vttae plateau

2025/10/11

David

Very good product, as ordered, very good quality and very solid for an electric bike

tough

2025/07/18

yep

great prooduct, did excatly what it said on the tin. bravo. delivery was quick too

34 tooth chainring

2025/06/30

david

Delivery quicker than expected. Fitted to the Bosch CX line gen 4 no problem. 34 tooth option , will have to see how long it lasts but so far everything good

The chain wheel need spacers in order to be used

2024/08/01

Ami

Unfortunately the chainring does not fit the bike. I have Trek Rail 7 . Your part look the same but it need spacers which have not been supplied so it can not be replaced.

Optimal

2024/07/05

Riki

Excellent product price, recommended

Fits perfectly on the performance line cx gen4.

2024/07/03

Tom

I ordered it for my Cube, with Professional Line CX Gen4 and it fits perfectly. Fast delivery and easy installation.

Bosch cx performance engine tray

2024/05/23

Frederic

Super produit.je recommend

Again and again

2024/05/21

Florian

Very good

Perfect

2024/05/20

Cyril

Original quality, good value for money

Perfect

2024/05/20

Cyril

Original quality, good value for money

Perfect

2023/10/27

Sergio

Original, good price and speed

Perfect

2023/09/09

Rafael

Product arrived quickly and as advertised.

Everything great - gladly again

2023/07/27

Markus Elbel

Original quality - suitable size for Cube Stereo Hybrid 140 SL with Bosch CX - top availability - fast delivery. My ebike is running again. Thanks

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Include AI Generated questions and answers

2023-08-25

Dan

Hi, is this compatible with Bosch performance CX line GEN 4.

Answer of Markus

Yes - was installed on CX engine Gen 4.

* Generated by AI based on customer and product data

2024-02-21

Robert

I have a Cube stereo Hybrid Actionteam 2022 with an eThirteen alloy crank, will this steel chainring be a straight swap? I ask because I have seen on Facebook that some people with the same bike have had chain de-railments resulting in broken chains - is a spacer required to avoid this?

Answer of Carlo

I mounted it on a 2021 stereo hibrid 140 and I haven´t had any problems with derailments or broken chains and I don´t have spacers. I suggest checking the freewheel bearings and the sprocket pack as if they have play they cause this type of problem

* Generated by AI based on customer and product data

2024-12-30

Tony

Hi, is this compatible with a Trek Rail 7 Gen 3 ? is 34T

Answer of Arthur

This one fits perfectly and is a good replacement.

Answer of Carlo

I don´t know if there is a difference between the third and fourth generation for the connection, I don´t think so. From what I can see it is compatible.

* Generated by AI based on customer and product data

2024-05-25

Varani Claudio

Hi, my chainring is identical to your product with the only difference being that mine has a 52mm chain, this one I see as 53-55 and compatible.

Answer of Patrick

We ordered a 32t for an e-MTB with a Bosch motor and it was easy to install

* Generated by AI based on customer and product data

2025-01-08

SIMONE

Good morning, I wanted to know if the item in question can be mounted on a 2023 Cube Stereo Hybrid 160 hpc Action Team.

Answer of Andreas

If the Cube has a Bosch motor then it fits.

* Generated by AI based on customer and product data

2024-01-14

Agostinho

Hello, I have 1 e-bike with a Bosch 4G engine, a 10V Shimano Deore 6100 transmission and an FSA Megatooth to GA 34t crankset Question Does this crankset fit my bike Thank you, regards

Answer of Stephane

I have it for an XT 12V. Adapted for the CX gen 4 but not sure if it passes for 10V...

Answer of ANTONIO

I mounted it on a Trek, it is the same one that came from the factory, the plates come in two ways, those that are screwed to a spider or those that go directly to the axle, if your bike has screws on the plate this will not work for you

* Generated by AI based on customer and product data

2024-10-28

Andrés

Hi, I have a cube stereo hybrid 140 slx 2023 ebike, smart system, with 29" wheels and 34 tooth chainring, would this be compatible with my ebike? Thanks

Answer of Carlo

My bike is a 2020 model and has 34t and it´s back to perfection You need to check your assembly and order the right replacement Then just count the teeth of the old one

Answer of christophe

Hello, We have already changed trays of this type on CUBE 140 2023, so YES it is compatible with cycles

* Generated by AI based on customer and product data

2024-10-28

Andrés

Hello, I have a Cube Stereo Hybrid 140 SLX 2023 ebike, with a Bosch Performance Line Gen4 Smart System motor, with 29" wheels, therefore a 34-tooth and concave chainring, i.e. OFFSET. Would this chainring be compatible? Thank you.

Answer of Patrick

We have a CUBE Stereo Hybrid 140 HPC SL 750 29", The E-thirteen E-Spec chainring 34t fits as a replacement part. The CUBE ACID HYBRID PRO HPA E-MTB Direct Mount Chainring | Bosch Gen 4 - 12-Speed - Narrow Wide - black is also an equivalent part.

Answer of christophe

Hello, YES the tray is compatible on all 140......

* Generated by AI based on customer and product data

2025-03-03

Dani

Good morning, I have questions about the transmission tool needed to remove the retaining ring for this chainring. I see that there are many similar ones and I would like to make sure before ordering, could you help me please? Thanks!

Answer of César

Hello. You´ll need a crank extractor (Shimano TL-FC11 or similar). And also a tool for removing and installing the axle nut (be careful! It must have the same number of points as the nut you have. For Bosch, it´s 8 points. Sram ISIS Drive BB Tool, or similar).

* Generated by AI based on customer and product data

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E-thirteen E-Spec chainring

Features of E-thirteen E-Spec

E-thirteen - Bike parts - Chainrings

Product description of E-thirteen E-Spec chainring

Technical specifications of E-thirteen E-Spec

Color Silver

Recommended Use E-bikes

Speed 11s

12s

Direct Mount Bosch

BCD Direct Mount

What our customers are saying about E-thirteen E-Spec chainring

Use cases

Best for

Benefits

Ideal buyer profiles

Competitive features