I bring my 40+ years of experience building bike frames and forks, riding bikes, and writing about bicycle technology and maintenance to answering your questions. I have no advertising nor an ad sales staff asking me to go easy on advertisers.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 143 | Founded | 3 years ago | Last Issue | 5 days ago |
| Active | |||||
Read this Newsletter
lennardzinn.substack.comLatest Issues
Using AI to Improve Cardiac Performance
Dear Readers,
Today’s column is a condensation of six months of back and forth emails with a reader from Warsaw, Poland. To deal with bradycardia (an abnormally low resting heart rate), he had a pacemaker (which boosts heart rate when it d...
13-Speed Chain Durability vs. 10-Speed
Dear Lennard,
I’ve heard that newer 13 speed chains are more durable than older 10 speed chains. Is this true? How is this possible if the rollers and plates are thinner? Is there some improvement to wear resistance due to more durable mat...
Chain Elongation and Directionality; Master Link Reuse; Nipple Corrosion
Regarding measuring chain elongation:
Dear Lennard,
Riding up a climb in 100F heat today, it occurred to me that the pins of the chain primarily wear on one side due to tension. Thus if you reverse the direction of the chain on the bike,...
How to check for cassette wear (and chain wear)
Dear Lennard,
My road bike du jour, with Di2 12 speed has almost 20,000 dry weather miles with waxed chains.
Do I just eyeball the chainring and cassette teeth, or what is a more objective method of measuring wear?
Jeff
Dear Jeff,
Eyeb...
Chain waxing and adjusting a 12-speed Di2 front derailleur
Dear Lennard,
Probably a typo, but on step 7 on your August 24th post, that should be the inner plate that you get within 0.5mm of the chain, not the outer.
Danny
Dear Danny,
Thanks so much for catching that! I fixed it just now. Indeed...
Key Facts
Audience Metrics
Subscribers, engagement, traffic and sponsorship for Technical Q&A with Lennard Zinn.
| Subscribers | Engagement | 72 | Monthly Web Visits | ||
|---|---|---|---|---|---|
| Accepts Sponsors | Estimated Cost per Ad | ||||
Chart Rankings
How this newsletter ranks in the official Substack charts.
| #232 | |
| #227 |
Authors
The writers behind this newsletter.
Since 1982, LENNARD ZINN’s built custom bikes: zinncycles.com. He is author of Zinn & the Art of Mountain Bike Maintenance, Zinn & the Art of Road Bike Maintenance, The Haywire Heart, and countless VeloNews tech articles.
Frequently Asked Questions
How can I access the email archive for Technical Q&A with Lennard Zinn?
You can find recent issues that have been published by Technical Q&A with Lennard Zinn on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.
How many subscribers does Technical Q&A with Lennard Zinn have?
To see how many people subscribe to Technical Q&A with Lennard Zinn, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.
How can I advertise in Technical Q&A with Lennard Zinn?
Newsletter advertising can be extremely effective when it's done right. Before you pitch Technical Q&A with Lennard Zinn as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.
Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.
How much does it cost to sponsor a publication like Technical Q&A with Lennard Zinn?
Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.
To find out how much an ad will cost, contact Technical Q&A with Lennard Zinn using the contact information provided and ask for a copy of their media kit.
How can I find newsletters related to Technical Q&A with Lennard Zinn?
Scroll up to where it says Related Newsletters to see other publications like Technical Q&A with Lennard Zinn. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.
How do I contact Technical Q&A with Lennard Zinn?
Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.