The idea of adding an auto-light system to a cross bike is not yet mainstream.
Recently, cross bikes with disc brakes are becoming common, but most people still assume that using a separately sold USB rechargeable light is the norm.
As a result, it is not uncommon for users to experience minor stresses such as "forgetting to charge," "wasting battery by forgetting to turn off the light," and "trouble removing and carrying the light."
RITEWAY's DYNAMO WHEEL and HUB DYNAMO LIGHT offer a solution to fundamentally reduce such "operational hassle." They support disc brake specifications, allowing you to upgrade your everyday cross bike for a more carefree experience.
Choosing an auto-light system changes the premise that "lights need to be charged."
- About Models, Pricing, and Compatibility
- Also Compatible with Disc Bikes|The Idea of Choosing "Comfort" Over "Performance"
- Wheel Features|Shimano Hub & Rim/Disc Brake Compatible
- Light Features|Affordable and Just Right Brightness for Everyday Use
- Examples of Compatible Disc Cross Bikes
- Summary|A Customization That Reduces Stress, Not Speed
RITEWAY DYNAMO WHEEL / HUB DYNAMO LIGHT|Model, Price, Compatibility

[Manufacturer's Suggested Retail Price] ¥29,920 (tax included)
[Size] 700C / 29 inches (ETRTO 622)
[Compatibility] 100mm OLD・QR (Quick Release) / Center Lock Disc Brake・Rim Brake compatible

[Manufacturer's Suggested Retail Price] ¥1,320 (tax included)
[Reference Weight] 90g
[Luminous Flux] 97 lumens
Also Compatible with Disc Bikes|The Idea of Choosing "Comfort" Over "Performance"

The necessary specs are completely different for those who want to enjoy cycling or participate in races, and those who consider sports bikes an extension of city bikes and simply want to make their daily lives a little more comfortable.
There are also disadvantages to adding an auto-light system. The weight increases by the amount of the hub dynamo, and theoretically, the rotational resistance of the wheel also increases slightly.
But what about the stress that accumulates daily?
・Being careful not to forget to charge.
・Being careful not to forget to turn off the light.
・Removing it for anti-theft every time you park.
This constant "being careful" is more burdensome than you might think.
Recent cross bikes have very high performance, offering more than enough riding performance for everyday use. In such cases, many people would value the comfort of "not having to manage anything" more than a few hundred grams of added weight or slight resistance.
RITEWAY's DYNAMO WHEEL is also compatible with disc brakes. It's a realistic option for upgrading your current cross bike from a "tool for pursuing speed" to a "tool that doesn't require management."
An auto-light system is not a customization for speed. But it is a customization that makes everyday life definitely easier.
Wheel Features|Shimano Hub & Rim/Disc Brake Compatible

The RITEWAY DYNAMO WHEEL is a front wheel that uses a SHIMANO dynamo hub (DH3D37QR). It generates electricity while riding and supplies power to the light, reducing the hassle of charging or replacing batteries.
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What's more, it's compatible with both center lock disc brakes and rim brakes. The wide range of compatibility is a great value as cross bikes increasingly feature disc brakes.
- Dynamo Hub: SHIMANO DH3D37QR (6V-3W)
- Wheel Size: 700C / 29 inches (ETRTO 622)
- Brake Compatibility: Center Lock Disc / Rim Brake
- Rim Inner Width: 19mm (Compatible Tire Width 22-57mm)
- Mounting Method: QR (Quick Release) / OLD 100mm
- *Only center lock mounting is supported, so 6-bolt rotors cannot be used.
Light Features|Affordable and Just Right Brightness for Everyday Use

The RITEWAY HUB DYNAMO LIGHT is a simple light that illuminates with hub dynamo power. It requires no charging or switch operation, ensuring stable brightness while riding.

While many dynamo lights are high-performance and high-priced, this light is affordable by focusing on "the performance needed for everyday use." It strikes a good balance, unlikely to be insufficient for city riding.
- Luminous Flux: 97 lumens / Illuminance: 23 lux (at 10m illumination distance)
- Waterproof: IPX5
- Voltage Compatibility: 6-48V (Hub dynamo / Electric assist compatible)
- Simple design (no residual light function)
Examples of Compatible Disc Cross Bikes
Even with disc brake cross bikes, dynamos are a perfectly realistic option.
Especially for cross bikes using Shimano hubs, which typically feature center lock disc rotors. Therefore, in most cases, the existing rotor can be reused as is.
For example—
All of these are classic cross bikes that we frequently feature on our blog.

Since they use Shimano hubs, converting them to dynamos can be relatively smooth by just replacing the wheel.
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Note that installation is also possible for disc cross bikes not listed here. However, if using a 6-bolt (6-hole) rotor, it will need to be replaced with a center lock type rotor.
It's not that "it's difficult because it's a disc bike," but rather a quite realistic customization as long as the specifications can be confirmed.
Summary|A Customization That Reduces Stress, Not Speed

A cross bike is a sports bike. Therefore, there is also the idea of prioritizing lightness and smooth rotation.
On the other hand, if you're using it for daily commutes, reducing daily stress is also a valid upgrade.
Automating the light system has disadvantages, such as a slight increase in weight and rotational resistance.
However, not worrying about charging. Not worrying about forgetting to turn it off. Not worrying about removing it. This "management-free comfort" is a much bigger benefit than you might think.
Recent disc cross bikes offer sufficient performance. Therefore, it's also rational to allocate that extra performance to "everyday comfort."
It's a customization that reduces stress, not speed. That's the dynamo option.
- Dynamo conversion is realistic even for disc cross bikes.
- For bikes with Shimano hubs, it's often possible to reuse the rotor.
- The appeal of auto-lights is "management-free comfort" rather than increased weight.
- For daily use, riding performance is more than sufficient.
- A customization that reduces stress, not speed.


Center Lock Type
6-bolt Type