Pedal Strike
#1
Other Worldly Member
Thread Starter
Join Date: May 2012
Location: The old Northwest Coast.
Posts: 1,540
Bikes: 1973 Motobecane Grand Jubilee, 1981 Centurion Super LeMans, 2010 Gary Fisher Wahoo, 2003 Colnago Dream Lux, 2014 Giant Defy 1, 2015 Framed Bikes Minnesota 3.0, several older family Treks
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 194 Post(s)
Liked 135 Times
in
52 Posts
Pedal Strike
So I'm rolling in hot to a right hand sweeper followed by a sharp left hand. Probably hit the left hand curve (a bit off camber at that, high left and low right) at about 15 mph and whoops, next thing I'm thinking locked rear wheel and I'm landing hard on my right side as in bang and down hard. Probably knocked me out for 2-3 seconds and I could hardly breathe when I thought. Damn. Took three breaths and thought 911 or the S.O. I thought about it for a few more seconds and figured all the parts worked and no bones were broken (so I hoped) and called the S.O. (still at work 2 miles away). Seat pointed left and bars pointed right. Checked everything out and then thought. Oops...pedal strike. Sure enough...left hand pedal, lower forward has the asphalt gouges. How stupid am I?
I've been riding the Colnago for months, it has nice tight TIME pedals. Switching to the old classic Centurion Super LeMans and I never gave it a thought.
I decide to take the Centurion out for a spin and..well..been a while since I struck a pedal but I bit this one hard..I distinctly recall powering through the curves and leaning left without a thought or a care in the world. The SL has old school aluminum rat traps with clips and I was in somewhat loose with court shoes..but keechrist that hurt. Pulled my right groin, jammed my lower right rib cage, chipped a tooth, and road rashed from knee to shoulder here and there and a nasty hip pointer. The Bell helmet has right side scratches and a dent. I figure it saved me from a cracked skull and whatever that would've brought. The wife would've killed me if that happened. Lesson learned is there's a hell of difference between the two bikes and I learned that hard way. Pedal clearance never even crossed my mind.
And this was to be a "recovery ride". Sheesh
.



I've been riding the Colnago for months, it has nice tight TIME pedals. Switching to the old classic Centurion Super LeMans and I never gave it a thought.
I decide to take the Centurion out for a spin and..well..been a while since I struck a pedal but I bit this one hard..I distinctly recall powering through the curves and leaning left without a thought or a care in the world. The SL has old school aluminum rat traps with clips and I was in somewhat loose with court shoes..but keechrist that hurt. Pulled my right groin, jammed my lower right rib cage, chipped a tooth, and road rashed from knee to shoulder here and there and a nasty hip pointer. The Bell helmet has right side scratches and a dent. I figure it saved me from a cracked skull and whatever that would've brought. The wife would've killed me if that happened. Lesson learned is there's a hell of difference between the two bikes and I learned that hard way. Pedal clearance never even crossed my mind.
And this was to be a "recovery ride". Sheesh

__________________
Make ******* Grate Cheese Again
Make ******* Grate Cheese Again
Last edited by Jseis; 05-09-13 at 09:33 AM.
#3
Full Member
I pedal strike too often on my Centurion, a lot of them just have low bottom brackets! But I feel that being loose on the bars usually saves me from going down, and I tend to power only the outside pedal in curves, just in case. Good luck on your recovery~
#4
Senior Member
Join Date: May 2010
Location: Hurricane Alley , Florida
Posts: 3,909
Bikes: Treks (USA), Schwinn Paramount, Schwinn letour,Raleigh Team Professional, Gazelle GoldLine Racing, 2 Super Mondias, Carlton Professional.
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 77 Post(s)
Liked 27 Times
in
22 Posts
I have sold every bike with a low Bottom Bracket for exactly this problem. One more reason never to even look at a Centurion. Hope you recover, stay safe.
#6
Banned.
Join Date: May 2011
Location: on the beach
Posts: 4,859
Bikes: '73 falcon sr, '76 grand record, '84 davidson
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 59 Post(s)
Likes: 0
Liked 20 Times
in
16 Posts
sounds like a pretty bad fall. glad nothing's broken, hope your rib heals within a couple weeks and hope the bike is ok too.
i've done this before with velo orange 'city' pedals, but part of the pedal chipped off and i recovered my balance. scared the hell out of me though.
get well, jimbo.
i've done this before with velo orange 'city' pedals, but part of the pedal chipped off and i recovered my balance. scared the hell out of me though.
get well, jimbo.
#8
Senior Member
Join Date: May 2008
Location: Fredericksburg, Va
Posts: 9,363
Bikes: '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, '94 Burley Duet, 97 Specialized RockHopper, 2010 Langster, Tern Link D8
Mentioned: 68 Post(s)
Tagged: 0 Thread(s)
Quoted: 1525 Post(s)
Liked 2,021 Times
in
1,000 Posts
Road rash sucks. Have fun picking! Glad you are OK and consider having yourself checked for the suspect concussion.
#9
Get off my lawn!
Join Date: Nov 2010
Location: The Garden State
Posts: 6,253
Bikes: 1917 Loomis, 1923 Rudge, 1930 Hercules Renown, 1947 Mclean, 1948 JA Holland, 1955 Hetchins, 1957 Carlton Flyer, 1962 Raleigh Sport, 1978&81 Raleigh Gomp GS', 2010 Raliegh Clubman
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 93 Post(s)
Likes: 0
Liked 96 Times
in
47 Posts
It's not a fixed gear...so why were you still spinning ( and leaning) into a corner?
Glad nothing was broken....but inside pedal up next time
Glad nothing was broken....but inside pedal up next time

#12
What??? Only 2 wheels?
Join Date: Apr 2010
Location: Boston-ish, MA
Posts: 13,448
Bikes: 72 Peugeot UO-8, 82 Peugeot TH8, 87 Bianchi Brava, 76? Masi Grand Criterium, 74 Motobecane Champion Team, 86 & 77 Gazelle champion mondial, 81? Grandis, 82? Tommasini, 83 Peugeot PF10
Mentioned: 189 Post(s)
Tagged: 0 Thread(s)
Quoted: 1222 Post(s)
Liked 633 Times
in
229 Posts
1. Get better soon. 
2. We didn't need the body shots.
3. I never spin through a really tight corner. Inside pedal stays up. I struck a pedal on my UO8 once many years ago. Hit so hard it bent the crank arm. Fortunately I didn't go down. It taught me a lesson. Take it to heart - don't do it again!

2. We didn't need the body shots.

3. I never spin through a really tight corner. Inside pedal stays up. I struck a pedal on my UO8 once many years ago. Hit so hard it bent the crank arm. Fortunately I didn't go down. It taught me a lesson. Take it to heart - don't do it again!

__________________
Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
#13
Other Worldly Member
Thread Starter
Join Date: May 2012
Location: The old Northwest Coast.
Posts: 1,540
Bikes: 1973 Motobecane Grand Jubilee, 1981 Centurion Super LeMans, 2010 Gary Fisher Wahoo, 2003 Colnago Dream Lux, 2014 Giant Defy 1, 2015 Framed Bikes Minnesota 3.0, several older family Treks
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 194 Post(s)
Liked 135 Times
in
52 Posts
Lesson learned the hard way.
Thanks for the comments.
Thanks for the comments.
__________________
Make ******* Grate Cheese Again
Make ******* Grate Cheese Again
#15
Senior Member
Join Date: Dec 2010
Location: Central Florida
Posts: 277
Bikes: 1985 Eddy Merckx Corsa Extra, 1978 Schwinn Super Letour 12.2, Schwinn Paramount PDG 50, 1992 Schwinn Paramount PDG 3, Sears ToteCycle in the works
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Yikes! Get better soon.
Silver lining: you get a new helmet.
Silver lining: you get a new helmet.
#16
Banned.
Join Date: Jul 2009
Location: PAZ
Posts: 12,394
Mentioned: 255 Post(s)
Tagged: 0 Thread(s)
Quoted: 2586 Post(s)
Liked 4,804 Times
in
1,707 Posts
Ouch - that's a lot of rash! Hope the body recovers quickly 
I hadn't hung a pedal in years until last summer; luckily for me and the Davidson, I simply got away with this after putting the hammer down a little too early coming out of a left-hander:

As your pics so painfully illustrate, it could've been worse
DD

I hadn't hung a pedal in years until last summer; luckily for me and the Davidson, I simply got away with this after putting the hammer down a little too early coming out of a left-hander:

As your pics so painfully illustrate, it could've been worse

DD
#17
Senior Member
Ouch! I've never hit a pedal, and hope I never do. Hope all is OK and heal up quickly!
#18
On the road
Join Date: Aug 2005
Location: New England
Posts: 2,057
Bikes: Old Schwinns and old Raleighs
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 328 Post(s)
Liked 617 Times
in
238 Posts
Raleigh once marketed bikes with lower bottom brackets as their "Safety" and "Safety First" line. I guess they were thinking of lower bicycles and not pedal strikes. I coast in the turns with the appropriate pedal up, but there's a litany of things that can go wrong with even a basic ride, whether it be pedal strike or something else. It is good you have no permanent injuries. You're right about the helmet. It's probably time for me to convert to wearing one too. I have one on the way on order.
__________________
Classic American and British Roadsters, Utility Bikes, and Sporting Bikes (1935-1979):
https://bikeshedva.blogspot.com/
Classic American and British Roadsters, Utility Bikes, and Sporting Bikes (1935-1979):
https://bikeshedva.blogspot.com/
#19
Other Worldly Member
Thread Starter
Join Date: May 2012
Location: The old Northwest Coast.
Posts: 1,540
Bikes: 1973 Motobecane Grand Jubilee, 1981 Centurion Super LeMans, 2010 Gary Fisher Wahoo, 2003 Colnago Dream Lux, 2014 Giant Defy 1, 2015 Framed Bikes Minnesota 3.0, several older family Treks
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 194 Post(s)
Liked 135 Times
in
52 Posts
Update.
The Centurion BB height at crankshaft centerline appears to be ~10.5", same as Colnago (I'll square up with right angle and check) and crank arms are of similar length ~170mm. Time pedals are narrower, swoop up on outside. Rat traps are wider, very angular. I'll measure everything EXACTLY.
I checked the crash site out of morbid curiousity. All the marks are there: Left side pedal strike in pavement, rear tire streak and corresponding mark on tire, marks on pavement as bike went down (right side), marks on bike (right side seat, right side bars, right side pedal as bike slid). My marks are there too: I flew about 22' through air before I hit, then I slide another 7-8 feet. My speed was likely 17-18 mph. The curve does have a bit of reverse camber which means the pavement slopes down to the right (no super elevation).
Helmet inner foam (like sytrofoam) is cracked clear through from exterior hard shell glueline to inner side of foam. The crack is 2" above and slightly behind my right temple. Hardshell is abraded but not cracked. That inner foam is just under an inch thick. While it is near the skull, the helmet actually rests (on your head) on narrow foam strips. Helmet is a 2011 Bell Crux purchased at Costco.
Helmet goes bye bye. Did its job.
The Centurion BB height at crankshaft centerline appears to be ~10.5", same as Colnago (I'll square up with right angle and check) and crank arms are of similar length ~170mm. Time pedals are narrower, swoop up on outside. Rat traps are wider, very angular. I'll measure everything EXACTLY.
I checked the crash site out of morbid curiousity. All the marks are there: Left side pedal strike in pavement, rear tire streak and corresponding mark on tire, marks on pavement as bike went down (right side), marks on bike (right side seat, right side bars, right side pedal as bike slid). My marks are there too: I flew about 22' through air before I hit, then I slide another 7-8 feet. My speed was likely 17-18 mph. The curve does have a bit of reverse camber which means the pavement slopes down to the right (no super elevation).
Helmet inner foam (like sytrofoam) is cracked clear through from exterior hard shell glueline to inner side of foam. The crack is 2" above and slightly behind my right temple. Hardshell is abraded but not cracked. That inner foam is just under an inch thick. While it is near the skull, the helmet actually rests (on your head) on narrow foam strips. Helmet is a 2011 Bell Crux purchased at Costco.
Helmet goes bye bye. Did its job.
__________________
Make ******* Grate Cheese Again
Make ******* Grate Cheese Again
#20
Senior Member
Join Date: Jun 2006
Posts: 19,225
Mentioned: 125 Post(s)
Tagged: 0 Thread(s)
Quoted: 3045 Post(s)
Liked 2,221 Times
in
1,599 Posts
Update.
The Centurion BB height at crankshaft centerline appears to be ~10.5", same as Colnago (I'll square up with right angle and check) and crank arms are of similar length ~170mm. Time pedals are narrower, swoop up on outside. Rat traps are wider, very angular. I'll measure everything EXACTLY.
I checked the crash site out of morbid curiousity. All the marks are there: Left side pedal strike in pavement, rear tire streak and corresponding mark on tire, marks on pavement as bike went down (right side), marks on bike (right side seat, right side bars, right side pedal as bike slid). My marks are there too: I flew about 22' through air before I hit, then I slide another 7-8 feet. My speed was likely 17-18 mph. The curve does have a bit of reverse camber which means the pavement slopes down to the right (no super elevation).
Helmet inner foam (like sytrofoam) is cracked clear through from exterior hard shell glueline to inner side of foam. The crack is 2" above and slightly behind my right temple. Hardshell is abraded but not cracked. That inner foam is just under an inch thick. While it is near the skull, the helmet actually rests (on your head) on narrow foam strips. Helmet is a 2011 Bell Crux purchased at Costco.
Helmet goes bye bye. Did its job.
The Centurion BB height at crankshaft centerline appears to be ~10.5", same as Colnago (I'll square up with right angle and check) and crank arms are of similar length ~170mm. Time pedals are narrower, swoop up on outside. Rat traps are wider, very angular. I'll measure everything EXACTLY.
I checked the crash site out of morbid curiousity. All the marks are there: Left side pedal strike in pavement, rear tire streak and corresponding mark on tire, marks on pavement as bike went down (right side), marks on bike (right side seat, right side bars, right side pedal as bike slid). My marks are there too: I flew about 22' through air before I hit, then I slide another 7-8 feet. My speed was likely 17-18 mph. The curve does have a bit of reverse camber which means the pavement slopes down to the right (no super elevation).
Helmet inner foam (like sytrofoam) is cracked clear through from exterior hard shell glueline to inner side of foam. The crack is 2" above and slightly behind my right temple. Hardshell is abraded but not cracked. That inner foam is just under an inch thick. While it is near the skull, the helmet actually rests (on your head) on narrow foam strips. Helmet is a 2011 Bell Crux purchased at Costco.
Helmet goes bye bye. Did its job.
My criterium machine had an 11" high bottom bracket, and 167.5 cranks, Campagnolo SL Pista pedals. With that the only guy who could pedal deeper in a corner was the guy with a Schroder that had an 11.5" high bracket. To others who had not learned, I would pedal through and I would hear the soundtrack of a pedal stuffing into the pavement behind me. It did not win races, but made it easier.
One thing I have done is while at a stand still, and still semi seated place the crank down on each side and lean the bike over till it touches, then back off a bit, it will give you some sensation of how far you can go before hitting.
As you get older this is less of a concern, as wisdom overpowers exhilaration. That and 7400 DuraAce pedals (their last strap pedal) that give you quite a bit extra room.
#21
What??? Only 2 wheels?
Join Date: Apr 2010
Location: Boston-ish, MA
Posts: 13,448
Bikes: 72 Peugeot UO-8, 82 Peugeot TH8, 87 Bianchi Brava, 76? Masi Grand Criterium, 74 Motobecane Champion Team, 86 & 77 Gazelle champion mondial, 81? Grandis, 82? Tommasini, 83 Peugeot PF10
Mentioned: 189 Post(s)
Tagged: 0 Thread(s)
Quoted: 1222 Post(s)
Liked 633 Times
in
229 Posts
I wonder if there is a current trend toward higher Q-factor. That would make pedal strike more likely. (It also contributes to BB flex. A stiffer BB would mean less flex so manufacturers could use higher Q-factor without riders thinking the frame was soft.)
__________________
Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
#22
Other Worldly Member
Thread Starter
Join Date: May 2012
Location: The old Northwest Coast.
Posts: 1,540
Bikes: 1973 Motobecane Grand Jubilee, 1981 Centurion Super LeMans, 2010 Gary Fisher Wahoo, 2003 Colnago Dream Lux, 2014 Giant Defy 1, 2015 Framed Bikes Minnesota 3.0, several older family Treks
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 194 Post(s)
Liked 135 Times
in
52 Posts
One thing I have done is while at a stand still, and still semi seated place the crank down on each side and lean the bike over till it touches, then back off a bit, it will give you some sensation of how far you can go before hitting.
As you get older this is less of a concern, as wisdom overpowers exhilaration. That and 7400 DuraAce pedals (their last strap pedal) that give you quite a bit extra room.
As you get older this is less of a concern, as wisdom overpowers exhilaration. That and 7400 DuraAce pedals (their last strap pedal) that give you quite a bit extra room.
__________________
Make ******* Grate Cheese Again
Make ******* Grate Cheese Again
#23
Get off my lawn!
Join Date: Nov 2010
Location: The Garden State
Posts: 6,253
Bikes: 1917 Loomis, 1923 Rudge, 1930 Hercules Renown, 1947 Mclean, 1948 JA Holland, 1955 Hetchins, 1957 Carlton Flyer, 1962 Raleigh Sport, 1978&81 Raleigh Gomp GS', 2010 Raliegh Clubman
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 93 Post(s)
Likes: 0
Liked 96 Times
in
47 Posts
If I were the OP's pedal....I'd be on Strike too!
#24
Senior Member
Join Date: Aug 2009
Location: Berkeley, CA
Posts: 7,365
Bikes: '72 Cilo Pacer, '72 Gitane Gran Tourisme, '72 Peugeot PX10, '73 Speedwell Ti, '74 Peugeot UE-8, '75 Peugeot PR-10L, '80 Colnago Super, '85 De Rosa Pro, '86 Look Equipe 753, '86 Look KG86, '89 Parkpre Team, '90 Parkpre Team MTB, '90 Merlin
Mentioned: 87 Post(s)
Tagged: 0 Thread(s)
Quoted: 802 Post(s)
Liked 1,825 Times
in
500 Posts
Ouch. Good luck with the recovery.
+1 to repechage's suggestion of the Dura Ace pedal. If you ever decide to try clipless pedals, the Dura Ace-branded Look pedals (Shimano model PD-7401) also have good clearance. Modern clipless pedals probably offer even better clearance.
I used to practice pedaling through corners while out of the saddle, such that you reach the bottom of the pedal stroke on the inner pedal while with the bike is leaning away from curve. This technique is discussed in Eddie Borysewicz's Bicycle Road Racing (VeloNews Corp., 1984), and came in handy when trying to accelerate out of a tight crit turn before your competitors. A bit awkward at first, but fun to do once you get the hang of it.
+1 to repechage's suggestion of the Dura Ace pedal. If you ever decide to try clipless pedals, the Dura Ace-branded Look pedals (Shimano model PD-7401) also have good clearance. Modern clipless pedals probably offer even better clearance.
I used to practice pedaling through corners while out of the saddle, such that you reach the bottom of the pedal stroke on the inner pedal while with the bike is leaning away from curve. This technique is discussed in Eddie Borysewicz's Bicycle Road Racing (VeloNews Corp., 1984), and came in handy when trying to accelerate out of a tight crit turn before your competitors. A bit awkward at first, but fun to do once you get the hang of it.
__________________
-Randy
'72 Cilo Pacer • '72 Peugeot PX10 • '73 Speedwell Ti • '74 Nishiki Competition • '74 Peugeot UE-8 • '86 Look Equipe 753 • '86 Look KG86 • '89 Parkpre Team Road • '90 Parkpre Team MTB • '90 Merlin Ti
Avatar photo courtesy of jeffveloart.com, contact: contact: jeffnil8 (at) gmail.com.
-Randy
'72 Cilo Pacer • '72 Peugeot PX10 • '73 Speedwell Ti • '74 Nishiki Competition • '74 Peugeot UE-8 • '86 Look Equipe 753 • '86 Look KG86 • '89 Parkpre Team Road • '90 Parkpre Team MTB • '90 Merlin Ti
Avatar photo courtesy of jeffveloart.com, contact: contact: jeffnil8 (at) gmail.com.
#25
Old fart
Join Date: Nov 2004
Location: Appleton WI
Posts: 24,583
Bikes: Several, mostly not name brands.
Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3409 Post(s)
Liked 3,020 Times
in
1,733 Posts
Yes, both modern trends to external bottom bracket bearings and offset (as opposed to straight) crank arms increase the "Q-factor." Shorter crank arms may help if you have persistent problems with pedal strike.