Groovy Cycleworks

[progetto]

Rody, just read the tips and tricks, You da man.

[sk_tle]

When I grow up I want to be like Rody.

[Rody]

When I grow up I want to be like Rody.

Believe me Thomas, I hope you do better :)

r

[G-reg]

Thanks for the words on the PMW yoke. Now that my yoke bike is done, it looks nice and is super stiff. But I spent days bending and filing to get hooded drops attached to them. Makes my day to hear a Pro verify it's as big of a pain in the ass as I learned it to be.

[Rody]

The guys at Fat-bike.com did a nice overview on Jeroens bike...

Seen at NAHBS – Groovy Cycles 29+ | FAT-BIKE.COM

and a similar build for Chris, but Rohloff compatible...

10157367_10152777481644409_4795986071902480606_n.jpg

10259858_10152777481784409_8228464741936985398_n.jpg

1491680_10152777482019409_8273254285827769362_n.jpg

will be built up next week for a visit/pick up from Arizona

[Gattonero]

Woah, that's nice

[Rody]

Woah, that's nice

Thanks, I was very apprehensive about committing to this particular scheme, actually sat on it for a day or two to be sure I was still excited about it before moving forward.

Customer allowed me the creative rope to hang myself, only dictated that it must be pink with vanilla.

He's dying inside to see it, but wants to wait until he flies in next week to ride the finished product.

cheers,

rody

[edoz]

If he doesn't like it, I'll take it:)

[Rody]

I am a bit rebellious and refuse to send a customer frame out for stiffness testing just so I have the privilege of purchasing a part. So I fab'd up my own.
10310518_10152800736534409_4176481601524866502_n.jpg
The cog is turned concentrically in the lathe, a separate 4 point engagement threaded insert is fabricated, then it is all placed onto the weld fixture where it is sequentially welded to maintain position and limit constriction of the thread.
10262245_10152800736664409_7547941812028591866_n.jpg
A little cerakote lovin to dress it up a bit and...
10313594_10152800736759409_4823896006503994511_n.jpg
BAM, I 'aint no corporations BITCH.

[edoz]

So who requires the stiffness testing? Is it the belt vendor?

[C D]

So who requires the stiffness testing? Is it the belt vendor?

IIRC, Gates require all frames to be used with a rohloff to be tested.

[Rody]

Actually, it is Rohloff that requires the testing, being performed by Gates/Spot for them.

Even more absurd, if the frame passes, there is the added requirement of using a pressure snubber on the rear cog to maintain belt position.

Ridiculous overkill.

Rohloff has a great product, it is a shame they are so resistant to moving forward and improving the products capabilities.

[htono]

Actually, it is Rohloff that requires the testing, being performed by Gates/Spot for them.

Even more absurd, if the frame passes, there is the added requirement of using a pressure snubber on the rear cog to maintain belt position.

Ridiculous overkill.

Rohloff has a great product, it is a shame they are so resistant to moving forward and improving the products capabilities.

Agreed. Their product is borderline on changing oyr world but their inability to finish it off and seducing the builders is killing their chance.

[Gattonero]

I am a bit rebellious and refuse to send a customer frame out for stiffness testing just so I have the privilege of purchasing a part. So I fab'd up my own.
...

I think I lost your path, but it looks terrific and I want to know what's it for in real life.
Am I wrong saying that you're testing a open-stay (or something similar) for a frame that will use a belt-drive system? What's the cog for?

[Rody]

@Gattonero...

allows a Gates belt to be used with a Rohloff internal hub, as below.

mike ti 650.jpg

[Gattonero]

...there is the added requirement of using a pressure snubber on the rear cog to maintain belt position.

That reminds me of a similar device added to the Strida's

@Gattonero...
allows a Gates belt to be used with a Rohloff internal hub, as below.

Ah, I see!
But isn't a bit time-consuming for one sprocket?

[Rody]

Ah, I see!
But isn't a bit time-consuming for one sprocket?

Not when compared to having to send a completed customer frame away for "stiffness testing" while you and the customer wait twiddling thumbs for the frame to return weeks later.

Besides, some times it's fun to embarq on such projects just because you can :)

rody

[Rody]

Chris wanted a desert crawler for shooting around the trails in Sedona; I was happy to oblige.

10291849_10152823693519409_7871003376435672254_n.jpg

See more pics and a link to the unveiling video here...

Groovy Cycleworks 330-988-0537: Chris's Camo Sedona Singletrack machine...

[Gattonero]

Not when compared to having to send a completed customer frame away for "stiffness testing" while you and the customer wait twiddling thumbs for the frame to return weeks later.

Besides, some times it's fun to embarq on such projects just because you can :)

rody

I see, and totally agree, I'll do just the same.

for what I can say, your approach to those "problems" is quite clever and neat, good hands there!

[Rody]

Groovy Cycleworks 330-988-0537: RIP Technical Trails