Clem 3 Speed

[J Imler]

I had some time today to convert my 2 speed Clem to a 3 speed. It was fine as it was, but now I've got an added big ring and a smaller granny ring. The front rings are now 40/34/21. The back is a 20t cog using the Paul Melvin Tensioner. The Melvin can handle 20 teeth worth of difference. I got the 21t ring on the front with the Mountain Tamer adapter. I really like the adapter but it does take some TLC (Dremel) to fine tune. I'm using a Shimano XT front derailleur. I haven't found a combo that thing can't handle. It's riding great!

Pre-tinkering today

New combo

Lil' baby 21

Chainline looking good. Beware of adjusting spacers on the Melvin. The C Clip springs and flies about like you wouldn't believe. I lost mine in the process.

[Richard Rose]

Fascinating!

Sent from my iPhone

On Jun 9, 2023, at 10:41 PM, J Imler <imle...@gmail.com> wrote:

I had some time today to convert my 2 speed Clem to a 3 speed. It was fine as it was, but now I've got an added big ring and a smaller granny ring. The front rings are now 40/34/21. The back is a 20t cog using the Paul Melvin Tensioner. The Melvin can handle 20 teeth worth of difference. I got the 21t ring on the front with the Mountain Tamer adapter. I really like the adapter but it does take some TLC (Dremel) to fine tune. I'm using a Shimano XT front derailleur. I haven't found a combo that thing can't handle. It's riding great!

Pre-tinkering today

<IMG_8757.jpg>

New combo

<IMG_2384.jpg>

Lil' baby 21

<IMG_2385.jpg>

Chainline looking good. Beware of adjusting spacers on the Melvin. The C Clip springs and flies about like you wouldn't believe. I lost mine in the process.

<IMG_2383.jpg>

--
You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bun...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/a54140a6-6f56-41c5-b251-f53d3260ac5bn%40googlegroups.com.

<IMG_2383.jpg>

<IMG_2385.jpg>

<IMG_8757.jpg>

<IMG_2384.jpg>

[Richard Rose]

So you converted your double to a triple?

Sent from my iPhone

On Jun 9, 2023, at 10:41 PM, J Imler <imle...@gmail.com> wrote:

I had some time today to convert my 2 speed Clem to a 3 speed. It was fine as it was, but now I've got an added big ring and a smaller granny ring. The front rings are now 40/34/21. The back is a 20t cog using the Paul Melvin Tensioner. The Melvin can handle 20 teeth worth of difference. I got the 21t ring on the front with the Mountain Tamer adapter. I really like the adapter but it does take some TLC (Dremel) to fine tune. I'm using a Shimano XT front derailleur. I haven't found a combo that thing can't handle. It's riding great!

Pre-tinkering today

<IMG_8757.jpg>

New combo

<IMG_2384.jpg>

Lil' baby 21

<IMG_2385.jpg>

Chainline looking good. Beware of adjusting spacers on the Melvin. The C Clip springs and flies about like you wouldn't believe. I lost mine in the process.

[J Imler]

Correct. Here's the shifting situation with a Simplex friction shifter (from 70's Peugeot) mounted to the reverse stem. I just reach over the top of the bars as it's a jungle of cables underneath. Towards me is high, away is low.

[J Imler]

I’m going to see if I can do a left right shifter switcharoo and have the shifting reverse. So toward me would be low, away high.

[Patrick Moore]

Jim: I entirely approve of 3-speeding a ss or a 2 speed, but curious why you (and others -- this seems to be the default Riv up-speed method) choose multiple rings and a front shiftr + chain tensioner instead of 3 cogs and a rear derailleur?

(Me, I choose a SA AM hub, perhaps in the near future also an ASC!)

Patrick "3-speed" Moore

--

You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bun...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/a54140a6-6f56-41c5-b251-f53d3260ac5bn%40googlegroups.com.

--

-----------------------------------------------------------------------

Patrick Moore

Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum

[J Imler]

I can't speak for others but mainly because of what I have available and found interesting. I like that the Paul Melvin has 20 teeth of chain wrap, so I bought it and don't regret it. When I originally was planning on this build I had 3 speeds in mind, but just now got around to installing the Mountain Tamer so I have a low gear for trails. 

I hope you land an ASC though and would love to see your build!