Internal Geared Hubs
#1
Newbie
Thread Starter
Join Date: Oct 2008
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Internal Geared Hubs
I would like some suggestions on which choice to make on an internally geared hub. I have the choice between a SRAM internal 7-speed and a Shimano Nexus eight-speed internal hub. I have no experience with these type hubs and would like to have some opinions on which is better quality. Thanks for any help.
#2
Senior Member
Join Date: Jul 2008
Location: Atlanta, GA
Posts: 549
Bikes: 2007 Fuji hybrid
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I have a Nexus 8 hub which I bought second hand. Gear 5 slips. Bike was not heavily ridden prior to my acquisition. YMMV....
#3
Senior Member
Join Date: Oct 2007
Location: Madison, WI
Posts: 1,522
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
The SRAM-7 has an excellent reputation. A fair number of randonneurs use it, and it holds up fairly well under that sort of use. They're also fairly repairable. Shimano hubs do not hold up as well, and aren't as repairable. Some of the parts just aren't available. And Shimano's planned obsolecense means even if the parts *were* available, odds are they're not now. V. depressing.
That said, if you're a "normal" user, odds are you won't wear out a Shimano hub quickly. They do tend to last at least 10k miles if you're not mean to them. For me, that works out to an expected lifetime of about 5 years.
That said, if you're a "normal" user, odds are you won't wear out a Shimano hub quickly. They do tend to last at least 10k miles if you're not mean to them. For me, that works out to an expected lifetime of about 5 years.
#4
Senior member
Join Date: Oct 2004
Location: Oakville Ontario
Posts: 8,108
Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
Quoted: 937 Post(s)
Liked 652 Times
in
367 Posts
I would like some suggestions on which choice to make on an internally geared hub. I have the choice between a SRAM internal 7-speed and a Shimano Nexus eight-speed internal hub. I have no experience with these type hubs and would like to have some opinions on which is better quality. Thanks for any help.
That said, depending on terrain, and what bike you are going to use it in, a Sturmey Archer 5 speed is a good low cost alternative.
I have a good assortment of gearhubs including 2 Rohloffs, a premium Nexus 8, a Sturmey Archer 5 speed, and now, a Sram i-Motion 9. I just got that one up and running yesterday, and my initial impressions are not really favorable. Here is a thread I posted about it.
https://www.bikeforums.net/bicycle-mechanics/540814-alternative-shifter-mounting-igh-drop-bars.html
#5
Been Around Awhile
Join Date: Oct 2004
Location: Burlington Iowa
Posts: 29,950
Bikes: Vaterland and Ragazzi
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked 1,517 Times
in
1,031 Posts
My daily commuter bike is equipped with a Sachs/SRAM Spectro 7 IGH with coaster brake. It has been used for the past 7 years of all weather (rain, snow, road salt, -4°F to 100°), daily commuting for approx. 35,000 miles. It still works fine and always has no matter what. It was original equipment on the department store city bike I bought new in Germany for approx $135. The bike still works fine too.
No experience with a Shimano 8 speed but I have a Shimano 7 speed IGH on a cruise bike and it is OK but the shifting gets sticky in below freezing temperatures
No experience with a Shimano 8 speed but I have a Shimano 7 speed IGH on a cruise bike and it is OK but the shifting gets sticky in below freezing temperatures
#6
afraid of whales
Join Date: Apr 2009
Location: Front Range, CO
Posts: 4,306
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 347 Post(s)
Likes: 0
Liked 5 Times
in
5 Posts
I have several IGH bikes and have been riding IGHs for ~30 years.
- Shimano Alfine: smoothest shifting but steps are irregular. I find it annoying on a commuter, no issue in the dirt. Newest version has new guts, 501. Had it working down to -20*F.
- Nexus is good, need to be aware of the model. I'd only consider the 8r25 or 8R35/6. The 8R35 has the Alfine 500 guts, the 8R36 has the newer Alfine guts, the 501 version. Had it working down to -20*F
- SRAM i-Motion 9: it's not as nice shifting as the Alfine, the steps are regular, works well on a commuter, not up to mountain biking. Not so good below freezing, I've switched it to oil bath, should be better next winter
- Rohloff, cost is ~$1600, what's the point?
Here's a couple of good sites for IGHs:
https://hubstripping.wordpress.com/
https://groups.yahoo.com/group/Geared_hub_bikes
- Shimano Alfine: smoothest shifting but steps are irregular. I find it annoying on a commuter, no issue in the dirt. Newest version has new guts, 501. Had it working down to -20*F.
- Nexus is good, need to be aware of the model. I'd only consider the 8r25 or 8R35/6. The 8R35 has the Alfine 500 guts, the 8R36 has the newer Alfine guts, the 501 version. Had it working down to -20*F
- SRAM i-Motion 9: it's not as nice shifting as the Alfine, the steps are regular, works well on a commuter, not up to mountain biking. Not so good below freezing, I've switched it to oil bath, should be better next winter
- Rohloff, cost is ~$1600, what's the point?
Here's a couple of good sites for IGHs:
https://hubstripping.wordpress.com/
https://groups.yahoo.com/group/Geared_hub_bikes