Wheel customization for Sig.Rando, compatible with three sizes: 26-inch, 650B, and 700c.
Wheel change customization can transform the same bike into a completely different ride.
Sometimes for a leisurely ride, sometimes for speed! Sometimes for a long touring setup.
The Sig.Rando, a Grumpy original bike, can accommodate three different wheel sizes.
We wanted you to enjoy a variety of customizations and use it for a long time, so this is one of the features we incorporated.
↓For those wondering "What is Sig.Rando?", check out this page!
The Sig.Rando can be fitted with 26-inch, 650B, and 700C wheels.
The maximum tire width confirmed is 26x2.35, 650Bx2.22, and 700x43c. Depending on the rim width and tire type, slightly wider tires may also be acceptable. Here are the characteristics of each wheel:
● 26-inch wheels
The smallest of the three wheels, the 26-inch, lowers the center of gravity when mounted on the Sig.Rando, providing a stable ride. This size is recommended if you're looking for fatter tires or an old-school MTB-style custom.
Tires around 2.3 inches wide give it a plump, charming look.
It's also a good choice for long rides with heavy luggage, such as touring Japan or around the world.
↓We also introduce the Sig.Rando with 26-inch wheels on Youtube.
Recommended 26-inch tires
・SimWorks Super Yummy Tire → View on online shop
・Schwalbe Marathon → View on online shop
● 650B wheels
The most balanced and versatile size. Excels at 1-night, 2-day camping tours and slightly rough gravel roads. Also recommended for city riding with many bumps and for adventurous cycling on holidays.
↓Youtube video introducing Sig.Rando with 650B wheels
Recommended 650B tires
・SimWorks Super Yummy → View on online shop
・SimWorks Volumy → View on online shop
・SimWorks Homage Tire →View on online shop
・Teravail Sparwood → View on online shop
・IRC BOKEN → View on online shop
・Bruce Gordon Rock 'n' Road Tire →View on online shop
● 700C wheels
This size is perfect for long rides and speedy rides with minimal equipment. Also recommended when you want to combine road bike speed with the luggage capacity of a touring bike. The wide variety of tires, rims, and complete wheels is also a major attraction.
↓Youtube video: Sig.Rando custom using 700c wheels
・Recommended 700c tires
Teravail Rampart → View on online shop
Teravail Washburn → View on online shop
Bruce Gordon Rock 'n' Road Tire → View on online shop
IRC BOKEN →View on online shop
Now, you can choose from two main types of wheels.
The first is hand-built wheels.
A wheelset that can be customized to suit your usage.
If you want to build wheels with a dynamo hub/light that automatically turns on when it gets dark, or with various colors like black and silver, hand-building is the way to go. Grumpy also accepts wheel assembly orders.
Here are popular wheel parts for Sig.Rando customization.
・SONNABEN Dynamo SON28 Hub Dynamo
Black 47,300 yen → View on online shop
Silver 46,200 yen → View on online shop
The second type is complete wheels.
Characterized by a unified and stylish wheelset, and a unique lineup of original manufacturer products. Many are also cost-effective.
↓Here are popular wheelsets at Grumpy.
・MAVIC ALLROAD SL 650B 104,500 yen → View on online shop
・Wicked Wheel Works 650B 66,000 yen → View on online shop
The Sig.Rando offers a wide variety of customization options, and simply changing the wheel size can transform it into a completely different ride.
Try the wheel customization that allows for various uses with a single bike, and experience the three different rides.