View Single Post
Old 08-16-14 | 10:00 AM
  #132  
roving70's Avatar
roving70
Member
 
Joined: Aug 2014
Posts: 38
Likes: 0
From: New York

Bikes: genesis 20' folder, giant 27.5 atx ebike

Originally Posted by atombikes
roving,

I upload images off my phone to Picasa, which then makes it easy to right click, copy image url. The Picasa account is linked to my gmail which makes things easy.

Anyway, I appreciate your comments and attempts to stiffen this bike, which I think is a pretty good platform to start from.

Here is a pic of the derailleur adapter held against the frame in the approximate location it needs to be. I understand it is not very clear, but notice how the adapter is not sitting flat against the frame, due to interference with the large rear stay. The adapter cannot go lower on the tube in this area because of interference with the curved stiffener tube that is welded on the backside of this tube.

Because of this, I think the only way to add a front derailleur would be to either modify this adapter bracket to make the vertical part that attaches the derailleur approximately half the current height; or attach this bracket very low near the bottom bracket and then use a top swing derailleur. This bracket would still need to be modified to attach down near the bottom bracket.



Regarding cable management, there is a built-in cable stop in the bottom of this bracket, so it's obviously meant for a bottom pull derailleur. So you can run your cable straight to this bracket- easy (no pulleys, etc).
atombike,

i see...fd adapter is huge! anyway would it be possible to reverse it? clamp on top and the braze on hanging downwards. also i believe putting a pulley would have a smooth cable pull. i've seen that blog from that singaporian guy and i think thor is putting a pulley on the mu p8 that he upgrade. also most of the upgrades on folders are top swing and bottom pull fd.

on the other hand, just so you know this is the first time that i joined a thread and also first time to familiarize bike components. i made research when my bike was stolen and opt for folder, the reason that i choose it because the trolley rack fits perfectly. and this should i say journey is all credited on your post and i think i forgot to THANK YOU. i purchase the bike after your unboxing and i am satisfied with my purchase(not to mention that i've got it for only $160 because of the credit that they gave me on defective wheels). i am excited on making this bike a better and stiffer bike that will last.

Last edited by roving70; 08-16-14 at 10:03 AM.
roving70 is offline  
Reply