RUNWELL 10x15mm Wrench / Made in Japan

You might be thinking, “Why not just buy that ¥800 wrench from the hardware store?”
Well, the second you touch this one, that cheap wrench instantly transforms into nothing more than a metal stick.

Grampa Nakase owns maybe five different wrenches from various brands, but at the end of the day—this one is The One.
Why? Because sometimes you’ve gotta loosen a hub that someone tightened like their life depended on it.
Or you’re dealing with a slightly rusted part and normal strength just doesn’t cut it.

And here’s the worst part: the kind of situation where your palm gets bright red and painful.
But not with this tool. This wrench fits your hand so perfectly that you can really push without the pain.
That “just right grip” is, in our opinion, its biggest superpower.

There’s no “Hey look at me! I’m a tool!” kind of presence.
Not too long, not too short, just the right weight.
Light enough that you forget it’s even in your bag.

It almost feels like a frying pan handle that’s been used in the kitchen for decades—smooth, familiar, and warm in the hand.
This thing probably will never break... but if for some reason it does, we’d honestly buy the same one again.

If you're reading this, you're probably someone who has already sworn,
“I’ll ride fixed gear for the rest of my life.”
And if that’s the case, you already know—
a 15mm wrench is a tool you'll need forever.
So isn’t this actually a cheap investment?

There’s also a short 15mm-only version,
but personally, we prefer this longer one.

What about the 10mm side?

If you run MKS chain tensioners—congratulations, you're lucky.
You can use the 10mm side for that.
Occasionally there are brake parts that use 10mm nuts too.

But if you don’t use chain tensioners, the 10mm might not show up often.
Still, when that surprise moment shows up and you think,
“Man, I’m glad I had this,”
that feeling is priceless.

Silver or Gold?

The gold version gives that tiny hint of satisfaction when you take it out of your bag—
like,
“Oh yeah… look what I’ve got.”
(Just a little “my wrench, my rules” vibe.)

It also makes an excellent gift for your fixed-gear buddies.
Just don’t give it to someone who doesn’t ride—
they won’t understand the greatness.
Give it to someone who’ll say,
“Dude, NICE choice.”

Specs

• Length: 180mm

• Weight: 92g

• Material: Steel

• Colors: Silver / Gold

• Made in Japan

About RUNWELL

RUNWELL is a specialist tool brand born in Tsubame-Sanjo, Niigata—
home of exceptional metal craftsmanship,
and trusted by professional keirin riders in Japan.

They love fixed-gear deeply,
and that love becomes ideas,
those ideas become tools,
and those tools are hand-finished by master craftsmen.

These are tools that everyone who loves fixed gear should own.

“Owning fixed-gear-specific tools = having pride as a fixed-gear rider.”
— Grampa Nakase