Blog
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What are the specifications of the limited edition, one-of-a-kind model: Sig.Rando & Surly Midnightspecial?
New "RAW color" painting service has started at Grumpy Paint. To celebrate, we are selling a limited edition "Sig.Rando" and "Surly Midnightspecia... -
Mr. Rando's talk on "Geometry"
Geometry refers to the overall dimensions and angles of each part of a frame. It's the foundation that determines how a bike feels to ride and wha... -
[Held in Ehime] Sig. Rando Test Ride Event at Branch Coffee on July 16 (Sat) & 17 (Sun)
The Sig. Rando Test Ride Event will be held at Branch Coffee in Saijo City, Ehime Prefecture, for two days on Saturday, July 16th, and Sunday, Jul... -
Adding a new model to Sig. Rando!
We are adding models compatible with the "flat mount standard" to our Sig. Rando series, which is widely adopted for road and gravel bikes.
As we will also continue with post mount models, a wider range of parts is now available.
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[Updated July 1st] Main complete bike and frame stock information
The Sig.Rando owner's meeting was held the other day.Owners of Sig.Rando bikes gathered, and I was glad to see them interacting.We interviewed ... -
[Sig. Rando Bike Custom]
One of the great things about the Sig.Rando is how easy it is to transfer parts from your old bike.The frameset uses common standards, so you can ... -
Wheel customization for the Sig.Rando, which can accommodate three sizes: 26-inch, 650B, and 700c.
Wheel change customization can make the same bicycle feel like a completely different ride. Sometimes leisurely, sometimes speedy! Sometimes set... -
We started Sig.Rando with the hope that our products would blend into your daily life and be used for a long time to come.
Sig.Rando was born as Grumpy's original bicycle. We are grateful to so many customers for their support, which has allowed us to continue selling ...
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