Please consider registering


— Forum Scope —

— Match —

— Forum Options —

Minimum search word length is 3 characters - maximum search word length is 84 characters

Register Lost password?
sp_Feed sp_PrintTopic sp_TopicIcon
Todd cilinder & Head
First Gear User
Site Member
Forum Posts: 1
Member Since:
September 15, 2019
sp_UserOfflineSmall Offline
May 13, 2020 - 10:14 am
sp_Permalink sp_Print

We are building a Bantam racer. Now we have a Todd Head and cilinder to fit the early D7 crankcases.

But we need longer cilinder holding down studs (app. 160 mm length).

Anyone know where to get them? Not much available over here in the Netherlands.dunno

Central France
Top Gear User
Site Member
Forum Posts: 3292
Member Since:
June 23, 2013
sp_UserOfflineSmall Offline
May 13, 2020 - 1:19 pm
sp_Permalink sp_Print

Hi, you may find it easier to make them yourselves. Take some steel rod, cut to length you need and use a die (or lathe if you have one) to cut the threads on the ends.

not henpecked
Near J 11 of M42
Top Gear User
Club Member
Forum Posts: 259
Member Since:
February 7, 2013
sp_UserOfflineSmall Offline
May 13, 2020 - 2:55 pm
sp_Permalink sp_Print

Hi, Good idea cocorico but make sure you get you have the correct grade of steel. The B175 studs were EN 15 or EN 16 - that's from my parts book.

(BSA must have been in a real mess when they produced the parts book - 2 studs quoted as EN15 and 2 as EN 16 - strange, oh so strange, and both pairs the same dimensions and thread sizes)

B175, on the road. Honda XBR 500, and ....... Suzuki Burgman 200 scoot! Nicknamed "The hair dryer" - by me I hasten to add; & great storage under the seat when you get to your destination.

Second Gear User
Club Member
Forum Posts: 10
Member Since:
July 30, 2019
sp_UserOfflineSmall Offline
July 14, 2020 - 12:31 pm
sp_Permalink sp_Print

Did you get sorted?  I recently got some from Raybox engineering in the UK.  These are manufactured from high tensile steel with 'rolled' threads, not die cut.  Shorter than what you want but maybe contact them.

I found out the hard way that the studs I bought previously were made of some kind of cheese, the moment I tried to torque them down.

1966 D7, 1968 T100, 2002 620i Ducati.

Blue Heeler
Top Gear User
Site Member
Forum Posts: 2546
Member Since:
November 16, 2011
sp_UserOfflineSmall Offline
July 14, 2020 - 12:54 pm
sp_Permalink sp_Print

I received some bits off him, a lady dealt with me, last week. I put a watch on the studs 8.8 high tensile, rolled threads as you say Egbert. Can`t muck about with cylinder studs. Proper job. 

** Please log in to view **

Fit decent plain washers and springs and quality nuts too. He sells the 8.8 tensile nuts... ** Please log in to view **?

I don`t like spending money on new stuff, but this is one of those areas I don`t compromise. They`ll outlast everyone.

Forum Timezone: Europe/London

Most Users Ever Online: 223

Currently Online:
4 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

cocorico: 3292

Cornish Rooster: 3109

bart: 2688

Blue Heeler: 2546

David Dale: 2349

Sprung Chicken: 2301

Piquet: 2063

Mags 1: 1863

jess steele: 1674

sunny: 1657

Newest Members:


Forum Stats:

Groups: 9

Forums: 48

Topics: 11009

Posts: 97748


Member Stats:

Guest Posters: 1433

Members: 3003

Moderators: 0

Admins: 3

Administrators: Bantam-Super, JMD, Stoo63