Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the October Giveaway for the Haven Bicycle Co. beach cruiser


Shimano Nexus 7 gear Internal Hub
#1
Hi.

I'm having some problems with my shimano gear. Link to the producer: http://bike.shimano.com/publish/content/global_cycle/en/us/index/products/0/nexus.html . I didn't know where to post this thread but here. The gear tries to shift out of the gear all the time. I have tried to readjust the gear with the screw on the handlebar but with no result. It just keeps on doing it. I guess the problem has to do with the gear itself but I don't know much about it. Its a mystery to me that its not enough just to tune the gear. Does anyone have a solution for me?

Thank you
  Reply
#2
There should be a very specific reference point to adjust the cable to. You need to follow the instructions carefully. Just twiddling the cable adjuster is unlikely to get it in the right spot. But if you've done that, the next thing to check is the cable. Look for any kinks or cracks in the housing, make sure nothing is interfering with it sliding smoothly, etc.

But if all the external stuff is fine, then it could be a problem in the hub. This is pretty rare as these hubs tend to be very durable, but it is possible. But you can't really work on these hubs yourself, they are very complex inside. First question is if it might still be under warranty. But you'll probably need help from a shop regardless if it is a hub issue.
  Reply
#3
It would help to know your riding conditions. If you're using this bike for commuting, or mountain biking, or road riding.

The Alfine hub was to replace the Nexus since it had too many problems on anything softer than pavement.

So if you're using it for anything other than gentle riding, the internals might be gunked up, (Hey, its a technical term!Big Grin) and it MIGHT need to be rebuilt.

Of course, Dave may be right, and it may need some simple tuning per the manufacturers specs. I guess it all depends on whether this has been happening all along, and you're just getting sick of it now, or it's just started.

Hell, it could be a manufacturer's defect for all we know.
Dedicated scholar of bicycles
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
1,605
10-14-2019, 06:55 AM
Last Post: walter
 
10,962
10-10-2017, 07:08 AM
Last Post: flor1n
 
14,348
01-26-2015, 02:21 PM
Last Post: eamil
 
5,274
08-05-2014, 03:39 AM
Last Post: lawman
 
7,653
03-20-2014, 08:10 PM
Last Post: cny-man
 
12,073
03-19-2014, 11:02 AM
Last Post: nfmisso

Forum Jump:

[-]
10 Latest Posts
V Brakes just won’t adjust properly
Today 12:19 AM
[Sponsored] Souke Sports Cycling Apparel...
Yesterday 09:17 PM
What was your first bicycle?
Yesterday 10:35 AM
Chain skips under heavy load when pedall...
Yesterday 06:03 AM
Bike evaluation
Yesterday 01:05 AM
VINTAGE DERAILLEURS: Campagnolo 50s-80s
Yesterday 12:52 AM
What's your No.1 concern when you purcha...
10-14-2021 11:24 PM
Is this frame dent a concern?
10-13-2021 04:50 PM
Looking for Cycling Apparel Testers - So...
10-12-2021 10:10 PM
Cycling Training Programs
10-12-2021 04:54 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Souke Sports
23 posts
no avatar 2. Criminal
15 posts
no avatar 3. ReapThaWhirlwind
13 posts
no avatar 4. Zviedrs
7 posts
no avatar 5. JR Namida
7 posts