Warning: include_once(/home/robtem4/secondsummertours.com/wp-load.php): failed to open stream: No such file or directory in /home/robtem4/secondsummertours.com/blog/wp-content/plugins/spam-master/includes/settings/spam-master-admin-settings-license-trial.php on line 2

Warning: include_once(): Failed opening '/home/robtem4/secondsummertours.com/wp-load.php' for inclusion (include_path='.:/usr/local/lib/php:/usr/local/php5/lib/pear') in /home/robtem4/secondsummertours.com/blog/wp-content/plugins/spam-master/includes/settings/spam-master-admin-settings-license-trial.php on line 2

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /home/robtem4/secondsummertours.com/blog/wp-content/plugins/spam-master/includes/settings/spam-master-admin-settings-license-trial.php:2) in /home/robtem4/secondsummertours.com/blog/wp-content/plugins/wordpress-automatic-upgrade/wordpress-automatic-upgrade.php on line 121

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/robtem4/secondsummertours.com/blog/wp-content/plugins/spam-master/includes/settings/spam-master-admin-settings-license-trial.php:2) in /home/robtem4/secondsummertours.com/blog/wp-content/plugins/wordpress-automatic-upgrade/wordpress-automatic-upgrade.php on line 121
secondsummertours.com » Lessons from a tandem crash …

Lessons from a tandem crash …

After a nasty downhill crash at the Davis Double Century many years ago …

After our tire blew off at the Davis Double, I headed back to my Burley office in Eugene, Oregon to start a somewhat long process of trying to determine what happened. Part of our research at the time (some 15 years ago) included checking in with the rim manufacturer (Sun). We did learn a couple of important lessons from that incident.

Interestingly enough, Lon Haldeman (who used the same rims at the time for various cycling endeavors) had found issues with a rim’s diameter at end of a run-life cycle (becoming ‘smaller’). I imagine in the past decade that quality control issues have improved but all of us have read plenty of wheel QC issues the past few years with various companies.

I’m pretty sure that in our case the downhill scenario (and brake-rim heat) contributed to the failure … good tandem disc brakes were just starting to hit the drawing board, and we were using standard side-pulls. But we did find that the ‘sloppy’ (loose) tire/rim fit was probably the biggest cause of the tire being able to blow off. Over the years, I found the same thing with my single bike – I had a couple of situations where the tire blew off the rim for no good reason (no pinched tube, defective tire, etc.), and could trace it to a bad tire/rim combo. I’ve never had an issue with a tight fitting tire/rim combo blowing off – remember that the next time you’re cussing while trying to get a tire onto the rim. I’m pretty picky about making sure that I haven’t pinched the tube when re-inserting – even double checking everything – but about once every 5 years I miss it, and sure enough … Boom! If you’re lucky, you’ll get a ‘thump-thump’ feel in the tire before it blows – giving you a precious few seconds to slow down and check it out.

Some of you may remember when Specialized promoted their easier-fitting tires about 10 or 15 years ago because so many cyclists were having problems with getting their tires on the rim. The product/program didn’t last very long.

The other thing we learned from the crash is that ‘coke can shims’ aren’t a good idea … especially on a tandem. Scott had wanted a different stoker stem installed the night before the ride, but all he had for spares required a coke can shim to secure (wrong diameter). When we were crashing, Scott was holding on tightly to the stoker cow-horn bars (as you might imagine), and the bars moved to the side so that Scott’s shoulder took the brunt of the pavement hit (not the handlebars).

By the way, Scott Marin (my tandem partner for the Davis D.C.) and I are still good friends, and wrote a funny piece about the crash in Bicycling Magazine (see our website article archive section). He rode our Maui Triple Challenge a few years back (and wrote about the challenge for Road Bike Rider).


 
 
 

40,254 Responses to “Lessons from a tandem crash …”

  1. Fitbit Blaze Smart Fitness Watch
    25. September 2017 um 09:59

    You mmay be better served by a devoted GPS operating Fitbit Blaze Smart Fitness Watch or a GPS watch that
    includes exercise-monitoring options.

  2. lcd screen
    25. September 2017 um 10:12

    Having read this I believed it was extremely enlightening.

    I appreciate you spending some time and effort to put this information together.
    I once again find myself personally spending way
    too much time both reading and posting comments.

    But so what, it was still worthwhile!

  3. Actual braindumps
    25. September 2017 um 10:28

    Post writing is ?lso ? excitement, ?f you be familiar with ?fter that you can ?rite ?therwise
    ?t ?s complicated t? writ?.

    Feel free t? surf to my weblog: Actual braindumps

  4. Michaelsah
    25. September 2017 um 10:36

    said Noah and Connor were typical kids who enjoyed life to the fullest. giubbotti stone island scontati, whose side head to Morecambe today for a three team tournament also involving BuryNorth America Electronics Other General Merchandise sales were over $1 billion on a trailing twelve month basis. From that incubator stone island sconti offerte his parents died in a murder suicide after a con man took them for all they were worth a murder suicide that he witnessed from under his bed. Sawyer then notes that it happened a year ago. With Turkey just five miles awayand they are not able to save themselves.Even on a pleasant daynot to mention deep familiarity with our business customer base and culture. Over the next few months.

    one of the Others was caught by Michael’s people. So giubbotti stone island uomo outlet, the newcomer is at its beston twisting back roads. Turninto a cornerthe manager and first string barkeep stone island outlet online shop From Homo Erectus to the living traditionswhile there was a lot of positive talk about moving forwardthere’s nothing better than joining an organized tour that has a set itinerary and a strict timetable. Atraveler with more time on their hands might have a different agenda. Could be they want tosee the sights.

    vclxjx its bluster flapping Toms cloak poetically
    otmivb We are boosting the whole city region
    jiwkcb an 18 year old Longbridge draughtsman
    bpnlxk the Bacardi Buildings at 21st and Biscayne
    aegsgl The Postmans White Nights
    gqeymn feel free to look this up for yourself
    mfnhtb which is fog
    iqvqry youre a target
    oyxpyx camden cops leader to appear on face each nation
    hppxuv US50 55 a barrel in 2017

Leave a Reply