Product Review: Knog Bull Frog tail light

Knog%20Bullfrog.jpg I’ve been using the Bull Frog tail light($28) by Knog for a couple months already. Like all of the Knog lighting products, the LED/battery case is encapsulated and affixed to a bike by means of a flexible silicon body. Most readers have seen the diminutive Frog lights, now available in a variety of body colours. I like them, but the Frog’s single LED and CR2032 batteries don’t make for long-lasting brilliance. What I wanted was a commuter tail light.

I present the Bull Frog.


With 3 AAA batteries powering 5 LEDs, the light provides ample if not superlative illumination. However, the Bull Frog’s ease and versatility in attachment are what really sell this light. Strap this light to seat stays, seat posts or wherever…without tools and within seconds. Plus the narrow cross-section keeps the Bull Frog out of the way.

Available in translucent or black silicon bodies.

Pedal-Powered Rattlesnake

Bike Jeremy, from the Austin Bike Zoo, shows us a 70-ft long pedal-powered rattlesnake …


Solemn in San Francisco

Human beings are incredibly fragile … especially on a bicycle.

A quote from a cyclist attending a memorial ride for two dead cyclists in San Francisco over the weekend.

Bike Hugger Spokesperson

If we had budget for a spokesperson, my vote is for Richard!

from the Bike Hugger Photostream.

My Girlfriend’s 5

bikebike%20after%2001.jpg So here it is: my girlfriend’s Kappa. It started out as a retro-style BMX frame with modern geometry and tubing diameters, and then with Jeremy Sycip’s help I devolved the bike back into BMX’s genesis, the Schwinn Stingray. Everyone who sees knows it’s something cool, but they don’t know what it is exactly.

I stripped the best components off of my discarded BMX bike and put them on her bike. Now it has Shimano DXR hubs and brake lever, XTR M952 v-brake, and a Dura-Ace bottom bracket. The crank is actually the Tiagra triple road crank that I used on my travel bike when I toured Japan last summer. I put an old school Shimano BMX 44-tooth chainring on, the only real vintage part on the bike. Rather than being four decades old, the Apple Krate saddle is actually a Schwinn factory repro, but it really makes the bike visually pop. Now that the bike has braze-ons for the sissy bar, the seat is secured a bit better.

The last touch is the Dimension “star” grips and a chainring guard that I made by griding off the teeth from a 53 tooth Vuelta road ring.


I’m not entirely happy with the fork. Someday I might send it to Sycip to have brake bosses brazed on to it and then powdercoated to match the frame, but that’ll have to wait. I told my girlfriend she needs to ride it a lot first, then we can talk about more mods. So far, she’s been riding everyday to work with it.


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