There is a letter about this topic somewhere in the library or forum. I found it a couple of months ago and have now lost it..
It says that Hartley suggested 65% for rigid singles and 70 something percent for swinging arm.
If anyone finds it, please let me know.
Search found 2018 matches
- Sun Jan 26, 2020 8:43 am
- Forum: Ariel Talk
- Topic: rigid crank versus swingarm crank
- Replies: 7
- Views: 1825
- Fri Jan 10, 2020 11:40 am
- Forum: Member's Bikes
- Topic: SpAriel MkII aka The Hermanator
- Replies: 168
- Views: 76619
Re: SpAriel MkII aka The Hermanator
Best to do these things while you can still remember what day it is..
Every retirement day is a new adventure..
Every retirement day is a new adventure..
- Fri Jan 10, 2020 10:09 am
- Forum: Four stroke
- Topic: Recommendation for concentric size
- Replies: 5
- Views: 1560
Re: Recommendation for concentric size
I'd use the 28mm. Agreed re the compression.
Even a 7.5:1 piston would be a big improvement.
I think you'll notice improved power throughout the rev range and a small loss of 'genteel' character.
Even a 7.5:1 piston would be a big improvement.
I think you'll notice improved power throughout the rev range and a small loss of 'genteel' character.
- Fri Jan 10, 2020 9:55 am
- Forum: Ariel Talk
- Topic: Running without lights
- Replies: 53
- Views: 16447
Re: Running without lights
I've always worked on the 'if you can't see them they're not there' principle - and so far it has worked brilliantly.
- Fri Jan 10, 2020 9:48 am
- Forum: Member's Bikes
- Topic: SpAriel MkII aka The Hermanator
- Replies: 168
- Views: 76619
Re: SpAriel MkII aka The Hermanator
Bored Vincent?
- Mon Dec 23, 2019 5:57 am
- Forum: Four stroke
- Topic: Square Four gearing
- Replies: 14
- Views: 4665
Re: Square Four gearing
I think standard gearing is a bit low for current roads, particularly if you are doing any highway riding.
- Wed Dec 11, 2019 9:43 am
- Forum: Main Chat Forum
- Topic: powdercoat disaster
- Replies: 36
- Views: 10348
Re: powdercoat disaster
Sounds like a good plan John. I have a less obvious but similar issue with some powder coating that dad had done on the '37NG. The 'gloss' bits that aren't satin have orange peel and pin holes. I figure the powder coat is a good base and I'm reluctant to have even more metal sandblasted away. A frus...
- Tue Dec 10, 2019 2:17 am
- Forum: Main Chat Forum
- Topic: powdercoat disaster
- Replies: 36
- Views: 10348
Re: powdercoat disaster
John, I'd like to post something constructive - but I'm having too much fun at your expense.
What do you plan to do?
What do you plan to do?
- Wed Dec 04, 2019 9:19 pm
- Forum: For sale/wanted - Bikes
- Topic: FOR SALE 1932 Red Hunter
- Replies: 10
- Views: 4283
Re: FOR SALE 1932 Red Hunter
Beautiful bike.
- Sat Nov 30, 2019 9:31 am
- Forum: Main Chat Forum
- Topic: A Red Hunter on the racetrack today
- Replies: 4
- Views: 1623
Re: A Red Hunter on the racetrack today
Awesome! Thanks.