erian
1 mW
- Joined
- Dec 22, 2017
- Messages
- 18
Hi everyone,
so here's the thing.
I have ended up with a problem i did everything to avoid, but my memory failed me miserably. i bought an mxus 135mm rear hub motor 250watts to fit on a frame i bought like and used as a city bike (130mm rear dropouts, 6061 triple butted aluminium). Before i put the motor on i would swear that the frame had 135 mm dropouts, it doesnt!
I decided to go with just fitting the wheel on. It was pretty easy to do it just by hands and although the dropouts look quite beefy there was no need for any real force. Luckily everything fits well enough, there is no touching between the motor and the frame, but i cannot use the smallest cog of the cassette (the chain will grind both frame and derailleur hanger), so i adjusted the gears to move only from 2nd to 8th.
Now on both sides the motor has M10 nuts (on the inside of the dropouts). Around 8mm thickness each of em. I was thnking of removing the left one and replacing it with a couple of washers just to move the wheel a bit to the left. 2mm will do the trick , then redishing and I will be able to use the smallest gear. What do you think? has anyone tried it? what about the stretched aluminium frame? Its a UK genesis, and although 5mm (2,5mm on each side) is not a lot, would it compromise the structure?
(photos will come)
so here's the thing.
I have ended up with a problem i did everything to avoid, but my memory failed me miserably. i bought an mxus 135mm rear hub motor 250watts to fit on a frame i bought like and used as a city bike (130mm rear dropouts, 6061 triple butted aluminium). Before i put the motor on i would swear that the frame had 135 mm dropouts, it doesnt!
I decided to go with just fitting the wheel on. It was pretty easy to do it just by hands and although the dropouts look quite beefy there was no need for any real force. Luckily everything fits well enough, there is no touching between the motor and the frame, but i cannot use the smallest cog of the cassette (the chain will grind both frame and derailleur hanger), so i adjusted the gears to move only from 2nd to 8th.
Now on both sides the motor has M10 nuts (on the inside of the dropouts). Around 8mm thickness each of em. I was thnking of removing the left one and replacing it with a couple of washers just to move the wheel a bit to the left. 2mm will do the trick , then redishing and I will be able to use the smallest gear. What do you think? has anyone tried it? what about the stretched aluminium frame? Its a UK genesis, and although 5mm (2,5mm on each side) is not a lot, would it compromise the structure?
(photos will come)