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

New: Take part in the May Giveaway for a Road Electric Bike Hurricane from KBO


Tools for bottom bracket on 1970s Sekine
#1
Hi folks! I was directed here by the folks over at r/bikewrench as I hear you are a helpful lot! I have a beautiful old Sekine which I think after a little research is a SHC 271 from the mid seventies. Unfortunately I was in a pretty nasty accident last year and it was out of commission for a while. I was using it indoors on my trainer and slowly going about repairs, getting it road ready again when I noticed the bottom bracket is super loose. https://imgur.com/a/vSZzAD6 (images from the reddit post)

I have never overhauled a bottom bracket before but I figure I should give it a shot especially as all the shops in my area are booked for months. I have an idea of what I need to do but the cups don't look like any others I have seen in my research. I took some up close pictures and they look like they use a hook spanner like for the lock ring but I cant find any other examples of it anywhere. Does anyone know what tool I should get for these cups?

I am getting a hook spanner and crank puller and want to get whatever other tool/wrench I will need to do the job right.

Lock Ring & Cup (Drive side Cup can be seen in Imgur post)

   

Lock Ring on the Cup

   
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Which gravel bike saddle do you suggest?
Yesterday 08:58 PM
2018 Specialized Stumpjumper Comp Alloy ...
Yesterday 01:06 PM
Biking in the rain
Yesterday 12:49 PM
Looking for a fixed gear bike under $300
Yesterday 12:44 PM
Have you Ever Tried an Electric Bike?
Yesterday 12:40 PM
2021 Pro Road Cycling
Yesterday 05:10 AM
Trek 720 (1997) Drive Train (Crank & Der...
05-11-2021 06:05 PM
I think I might of been a little too has...
05-11-2021 02:03 AM
Schwinn 3rd Avenue 700C hybrid
05-08-2021 02:33 AM
Square-Taper BB 68 (1.37 24T) Crank-Arm ...
05-07-2021 01:52 PM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
28 posts
no avatar 2. ChaseCal
6 posts
no avatar 3. Papa Dom
4 posts
no avatar 4. ManBearPig
4 posts
no avatar 5. Stephen111
4 posts