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

New: Take part in the February Giveaway for a Reflective Backpack & Spine Protector from RiderBag


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
Can you help me find out which Koga Miya...
Today 02:42 PM
Chain for specialized rockhopper
Today 01:28 PM
How to stay safe while biking?
Today 01:20 PM
Cold toes during long bike rides
Today 12:40 PM
Singlespeed freewheel chain compability
Today 12:12 PM
How many people ride everyday?
Yesterday 07:05 PM
Tricycle rear axel removal
02-27-2021 07:52 PM
What kind of frame do I have here?
02-27-2021 03:01 AM
Restoration of a 1980 Falcon Road Bike
02-26-2021 01:39 PM
New bike
02-26-2021 12:52 PM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
12 posts
no avatar 2. Criminal
10 posts
no avatar 3. Painkiller
7 posts
no avatar 4. ILv2MTB
5 posts
no avatar 5. nancy joshua
4 posts