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Singlespeed bikes: Illegal death traps? - Cyclelicious

Singlespeed bikes: Illegal death traps?

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Wednesday, February 03, 2010
By Yokota Fritz

These bikes may be illegal to sell in the United States! Do you see the problem with these production bikes? See if you can find it before I give it away below the photos.

Swobo Del Norte

Erin on the Swobo Del Norte

Spot Brand 29er

Spot brand 29er with belt drive

Cayne Uno

Cayne Uno

Strida 5.0

Look, Ma! No seatpost!

Bianchi San Jose

Katie and her Bianchi San Jose

Cannondale Hooligan

Vajda and his Cannondale Hooligan

This belt drive singlespeed from Lynskey, however, is perfectly legit.

Lynskey titanium singlespeed mountain bike with BELT DRIVE

This Trek District is also legal.

Trek District -- belt drive bike

This Bianchi Pista is probably legal to sell.

Bianchi Pista at San Jose Diridon Station

Have you spotted the problem, yet?

In the United States, the Consumer Product Safety Commission produces the regulations for bicycle safety. Any bike sold here must meet the standards published under the Requirements for Bicycles. These regulations are the reason every bike must be sold with a pie plate spoke protector, reflectors, brakes, instruction manuals, and warning stickers cautioning owners not to overtighten the handlebar stem.

Chainguards required

Chainguards are a requirement for "bicycles having a single front sprocket and a single rear sprocket." That seems to mean that every singlespeed bike and every bike with internal hub gearing -- including that sweet singlespeed 29er, your urban fixed gear tarck bike, and the very useful Strida folding bike with belt drive -- is required by Federal law to be sold with a chainguard.

This standard dates back 1973, when the nascent CPSC identified the bicycle as the Number One health threat to children (no kidding!). If the CPSC narratives can be believed, one problem is the little darlings apparently kept jamming their foot into the chain, wrecking the bike and injuring themselves in the process. John Forester, among others, has expressed his disdain for CPSC accident investigations.

The CPSC only regulates the sale of new bikes. You can modify it however you want after the sale, which is why so many people remove the dork disk spoke protector and reflectors from their derailleur bikes after purchase.


What about the Lynskey, the Trek District, and the Bianchi Pista? Why don't those bikes break the law?

The Lynskey is a custom made, built to order bicycle. "One of a kind" bikes like the Lynskey are specifically exempted from CPSC bicycle regulations.

If you look close at Trek's district, you'll see a little vestigial chainguard that likely meets the minimal requirements for a chainguard.

Finally, the Bianchi Pista is a real track bike, meant for racing on the velodrome. "Track bicycles designed and intended for competition that have tubular tires, a single crank–to-wheel ratio and no freewheeling feature are exempt," according to the CPSC regs. I put that bike under "maybe" because the Pista is spec'd with clinchers, not tubulars, but the CPSC fails to define "tubular tires" in their regs so maybe Bianchi and every other track bike vendor can get away with this.

Okay. So what?

This doesn't directly affect us as consumers. The CPSC rules are only for those in the bike supply chain. If the CPSC ever decides to enforces this chainguard rule, it will increase costs for the bike companies that will probably be passed on to you. The chance of a product recall affecting singlespeed mountain bikes seems silly, but the CPSC forced Cannondale to issue a recall last year when Cannondale forgot to include spoke protectors on some of their road bikes.

Maybe the bike companies are working behind the scenes to update the CPSC regulations. When the chainguard requirement was written in 1973, children bikes weren't equipped with derailluers, while adult bikes generally were. I imagine the rationale was that adults typically know better than to stick small appendages into moving bike parts. Simple adult "city" bikes and singlespeed mountain bikes are big categories these days, and the increasing popularity of belt drives reduces much of the need for a chain guard.

What do you think? Should the bike industry push the CPSC to modify their regulations? Or should they continue to operate on the down low and hope the Feds continue to ignore them?

Photo credit: Trek District photo courtesy Mark Stevenson aka Guitar Ted; Lynskey courtesy Lynskey Performance Designs. All other photos Richard Masoner.

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From my reading of the rules you posted yesterday it would appear that the chainguard on the Trek doesn't cover enough of the front chainring.
@Weezy - I think you might be right - chainguard must cover 90% of the part of the chainring the chain touches. "Bicycles with a single front and a single rear sprocket must have a chain guard over the top of the chain and least 90% of the part of the front sprocket that the chain contacts."
Another example of busy laws that do nothing but make producers and consumers have to pay a little more for something that'll get removed the second the bike is home.

By the way, I really like your term, dork disc!
The pie plate broke off long ago---do the extra reflectors compensate for the lack of dorkiness, or do I need to kludge a new one from, say, an old America Online CD-ROM, so as not to lose the coveted title of Dokiest Bike Ever?
Does that mean a cracked pie plate requires a recall?

Noticed that sidewalk bikes are exempt from fork strength test. Under wheel requirements: (a) There shall be no missing spokes.
If the cracked pie plate occurs after purchase, I do not see how that would require a recall.

If a significant number of bikes were sold with pie plates that cracked while in transit to the bike shop, then perhaps a recall would be required.

This is my interpretation.
@Doug's correct: The CPSC only regulates the sale of bikes. What happens afterwards is out of their purview (unless the cause is a manufacturing or design defect).

@Jennifer: Old AOL CD-ROMs would rule.
If I am not mistaken, I believe California states in the highway regs that all bikes must have reflectors on the pedals. I can't think of a single clipless pedal that meets that.
@Ross - you're correct; bikes at night must have reflectors on the pedals and on the wheels as well (along with other requirements). Some states have changed the law so that ankle straps or reflective bits on the shoes will meet pedal requirement. Some states also require bells on all bicycles.
After having worked for a major cycling company in the testing and compliance department, I feel you should clear up a few things:

1) Companies ARE complying with these CPSC rulings. New legislation in 2009 created strict policies that can result in heavy fines and imprisonment for anyone who disregards the safety requirements. Though there are some extended deadlines to meet chemical requirements, safety requirements have been in effect for over a year now.

2) In regards to reflectors, chain guards, etc.- Bicycle manufacturers must supply these to the dealer. However, it is at the discretion of the bike shop whether to install them. This explains why these elements are not seen in your example pictures.
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