shimano hyperglide c 11-34

A place to list links to sources for EV related parts and services.
Post Reply
User avatar
bionicdan
1 kW
1 kW
Posts: 355
Joined: Dec 22, 2010 4:07 pm
Location: uk

shimano hyperglide c 11-34

Post by bionicdan » Aug 15, 2016 3:53 am

I think this guy invented a time machine and went back to 2005 or something lol. He keeps listing about ten at a time.

Nice and smooth and well oiled with no rust. I think this is the holy grail of rear multisprocket clusters unless someone knows better. Iv destroyed 2 9 speed dnp's but the 7 speeds seem to do better as they dont over hang the support bearing as far.

http://www.ebay.co.uk/itm/152191987735? ... EBIDX%3AIT
GEARS? Where we're going we dont need gears!

Due to metal plates and a body full of nuts and bolts I am as bionic as my bike. Mxus 4t 120v toshiba fets and 16ah 24s nanotech.

User avatar
Chalo
100 GW
100 GW
Posts: 6443
Joined: Apr 29, 2009 11:29 pm
Location: Austin, Texas

Re: shimano hyperglide c 11-34

Post by Chalo » Aug 15, 2016 4:07 am

Mechanically, the Shimano 11-34 and less common 11-28 7-speed freewheels are the best ever that I am aware of. The fact that they have 11t top gears is icing on the cake. But no matter how good they are, if you run them in the 11t most of the time, you'll chew them up along with your chain. Think of the small sprocket as a "turbo boost" to be used sparingly when circumstances dictate.

I took the 11-34 freewheels off a couple of my bikes and replaced them with inferior 14-34 units, just because the lesser freewheels would still do the job and I could set aside the out-of-production freewheels for worthier purposes.

Adding high speed gears to a crank drive e-bike would be an example of a worthier purpose.
This is to express my gratitude to Justin of Grin Technologies for his extraordinary measures to save this forum for the benefit of all.

User avatar
bionicdan
1 kW
1 kW
Posts: 355
Joined: Dec 22, 2010 4:07 pm
Location: uk

Re: shimano hyperglide c 11-34

Post by bionicdan » Aug 15, 2016 4:17 am

Iv never chewed a chain in my life as I dont hammer the pedals in the smaller cogs. But the whole units become rattly and sometimes snag the chain as it locks up over bumps :(

Apparently the megarange one had the best bearings in the shimano freewheels. time will tell :)

http://www.sheldonbrown.com/mega7/

Someone did fudge a support bearing under the 11t cog on a 9 speed dnp block.
GEARS? Where we're going we dont need gears!

Due to metal plates and a body full of nuts and bolts I am as bionic as my bike. Mxus 4t 120v toshiba fets and 16ah 24s nanotech.

Post Reply