Accessibility Widget: On | Off
Liked a comment on the item Project Shredmaster 2020 - Selfmade Gearbox Frame 1/18/2021 1:21 PM

Bike of the Day December 9, 2020!

Liked a comment on the item Project Shredmaster 2020 - Selfmade Gearbox Frame 1/18/2021 1:21 PM

Sounds like it rips. How does it handle pedaling and shifting under load?

Liked a comment on the item Project Shredmaster 2020 - Selfmade Gearbox Frame 1/18/2021 1:21 PM

We didnt know Ingo personally, we just conacted him smile

Tubes came from: Zonenschein, Wowbike and Huahsines.

About dimensioning, well Peter has an engineering backround and we got recommendations from Kavenz bikes and others. And then we mostly added a bit on top wink

Liked a comment on the item Project Shredmaster 2020 - Selfmade Gearbox Frame 1/18/2021 1:20 PM

We bought the tubes all over the place, wherever we would get them :D

Welding was done by a professional welder, including heat treatment afterwards. Because yeah, you need to know what you are doing, when welding aluminium, and i dont sideways

Liked a comment on the item Project Shredmaster 2020 - Selfmade Gearbox Frame 1/18/2021 1:20 PM

Thx! smile

It's the 6-Gear Version with 295% range. Pretty much the same Range as a SRAM DH 7-Gear Setup.

The reason for the Gearbox was first of all less unsprung weight on the rear wheel (about 450g),
which makes the suspension more active and supple / plush. Which is the whole point of a DH-Bike suspension...more

Liked a comment on the item Project Shredmaster 2020 - Selfmade Gearbox Frame 1/18/2021 1:19 PM

Get Linkage Design (https://www.bikechecker.com/) and Design your suspension and geometry.
Then find someone who knows how to translate that into CAD smile

Liked a comment on the item Project Shredmaster 2020 - Selfmade Gearbox Frame 1/18/2021 1:19 PM

The welding (and heat treatment) was done by Ingo Müller.
He is also welding the Kavenz Bikes for example. I'd say he's pretty good wink

Liked a comment on the item Project Shredmaster 2020 - Selfmade Gearbox Frame 1/18/2021 1:19 PM

That's amazing. The bike just looks ridiculously clean and tidy for a home project. Who welded it? As I understand it, welding aluminum frame tubes is significantly harder than welding steel. I guess the biggest benefit is that machine time goes way down for making all the bits and bobs out of aluminum...more

Liked a comment on the item Project Shredmaster 2020 - Selfmade Gearbox Frame 1/18/2021 1:18 PM

The DH-Frame gets optimized first. We'll see what comes next wink

Liked a bike check Project Shredmaster 2020 - Selfmade Gearbox Frame 1/18/2021 1:18 PM
Project Shredmaster 2020 - Selfmade Gearbox Frame
Liked a comment on the item MTB ADVICE!! with Team Robot - ANSWERS #1 1/18/2021 1:17 PM

Is he the guy that owns Evil?

Liked a comment on the item MTB ADVICE!! with Team Robot - ANSWERS #1 1/18/2021 1:17 PM

Does this mean the great Rolf Van Sosen, the account manager at Bellevue firm EquiMidas Equity Management and Investment Capital Strategies, LLC, is not as sick as a mountain biker his instagram account portrays him to be?

Liked a comment on the item MTB ADVICE!! with Team Robot - ANSWERS #1 1/18/2021 1:17 PM

I wish I'd written that

Liked a comment on the item MTB ADVICE!! with Team Robot - ANSWERS #1 1/18/2021 1:16 PM

Doe's switching chain lube or cleaning your chain make you, personally, go noticeably faster up hill? It's the same argument back to back. We both know less unsprung weight will create less inertia after a hit. This means the damper can function more efficiently, creating better traction, and...more

Liked a comment on the item MTB ADVICE!! with Team Robot - ANSWERS #1 1/18/2021 1:13 PM

Ceramicspeeds design was one bearing at a time meshing into a machined “cassette”, very few points of contact. Compared to the many points meshing in a chain or standard gearbox design. The only reason larger cogs are more efficient with more points contacting at once, is because you are reducing the...more

Liked a comment on the item MTB ADVICE!! with Team Robot - ANSWERS #1 1/18/2021 12:58 PM

I firmly believe that there is only one hurdle to overcome with gearboxes, and it has nothing to do with efficiency. Between the top companies, there is enough funding and engineering creativity, to overcome all "problems" associated with gearboxes. We do not need constantly meshing gears that are way...more

Liked a comment on the item MTB ADVICE!! with Team Robot - ANSWERS #1 1/18/2021 12:56 PM

Short answer: as far as I've heard, manufacturing limitations mean that in a real functional environment all gears (even new-fangled non-involute gears) slide a little when they make contact. If there were no friction or impact between meshing gears, for instance, you wouldn't need lubrication in a...more

Liked a comment on the item Gary Fisher Sugar 2+ Mullet/On Coil 1/18/2021 12:36 PM

Very cool! But I remember the rear end being a bit if a wet noodle. I'm sure modern wheels helps a lot.. ?

Liked a comment on the item Gary Fisher Sugar 2+ Mullet/On Coil 1/18/2021 12:36 PM

What an absolute beast! I bet she is a blast on the trail/mountain! That paint job will always be in style! Great looking bike!

Liked a bike check Forbidden Druid Custom Purple Steel 1/8/2021 7:01 PM
Forbidden Druid Custom Purple Steel