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916 NW 21st Avenue
Portland, Oregon 97209

503-222-2851

21st Avenue Bicycles specializes in road bike sales, service and repairs. Located in NW Portland, Oregon, the shop can help you find the perfect bike for your ride. Bike commuting, road biking, racing or the casual cruise. 

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Filtering by Category: Service Blog

They Fix #1: Mr. Knobby

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Mr. Tuffy has nothing on Mr. Knobby, the new tire liner innovation.

Mr. Tuffy has nothing on Mr. Knobby, the new tire liner innovation.

It has been said that epiphany whispers to us like angels from heaven.  Other times, inspiration barks at us like junkyard dogs.  When your kid pops a flat for the umpteenth time and threatens to hijack the ipad instead of playing outside, you scramble for a solution.  So you grab your garden shears and whatever old worn out tire you've got in the garage and make yourself a textured tire liner.  We salute you mothers, fathers and extended family of invention.          

"They Fix" is our new series highlighting other people's innovations, workarounds and bike hacks we see here in Portland.  Also, look for our upcoming companion posts "We Fix" to see how we do bikes here at 21st Avenue Bicycles.

Lube it or Lose it...Three Flavors to Save it!

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As bike mechanics, we know that it becomes necessary to have 'the talk' with developing cyclists.  You know the symptoms: high pitched squeaking, rusty discoloration/discharge and if left untreated for extended periods, total parts failure.  Perhaps you as a rider once lived in a more mild climate or had been attended to by a well-meaning bike mechanic who treated you kindly but perhaps never had the guts to break down the situation in great detail.  Here at 21st Avenue Bikes we don't shy away from having 'the talk' about proper chain lubrication.  Because we care.  Here are three different flavors of chain lube we sell and recommend...

Tri-Flow: Superior Lubricant

Tri-Flow is a light oil with PTFE, a teflon additive.  When you apply it to your chain you add a thin layer of protective film to the metal moving surfaces.  Before you use it, shake the bottle thoroughly to disperse the PTFE additive that sinks to the bottom.  The bottle comes with a handy plastic applicator tube.  It is the only chain lube we sell that comes in a black bottle.

Kurt: "It's affordable.  You will need to reapply any lube you buy.  It is what bike shops smell like and possibly made out of bananas."

Prolink and Prolink Xtreme chain lube: with MFR Technology

Do you like cleaning your chain?  Probably not.  Prolink likes to clean your chain.  The patented M etal F riction R educer magic works great.  After you apply Prolink, wipe down your chain with a clean rag and witness the amazing cleaning action of MFR tech.  It does not smell like bananas.

Ben:  "Prolink's solvent action lubes, cleans and protects in one step.  Lube on, wipe off and... all done.  I like that it does not have a disturbing food smell."

Dumonde Tech Lite Chain Lube

This is heavier and more viscous than your average chain lubricant.  This means more staying power in wet'n nasty riding conditions.  Dumonde recommends that you thoroughly clean your chain before applying this lube.  Many people believe that it carries the odor of a delightful cave-aged blue cheese.  You decide.

Jerry:  "Built by science for nerds."

What about other chain lubes?   And whats the deal with chain wax?  I heard it is the best.     

There are many fine chain lubrication products on the market.  As the old joke goes, ask two bike mechanics which lube they like and you'll get two answers and a third that both of them hate.  The most important feature of any chain lubricant is that you use it regularly.  Wet Portland riding conditions will wash even the stickiest lube off your chain so be prepared to reapply your lube of choice following a rainy ride.  That could mean lubing up three to five times a week!

Products that are powered by "Ice", "Lightning" or "Honey Bees" are generally wax or silicone-based chain lubricants.  These products coat the chain surface with, you guessed it, the waxy stuff.  Over time, wax lubricants migrate away from the surfaces they are meant to protect and accumulate on nearby surfaces.  In dry riding conditions this takes a fairly long time and as a result wax lubes don't need to reapplied very often. 

In sloppy, rainy Portland conditions these wax lubes wear off fast and gunk up drive parts.  Chain cleaners and normal solvents don't break down these compounds making them very difficult to clean.  The best way to remove wax from chains is boiling them in a pot of water, which can be a real drag.  Different strokes for different folks, different lubes for different tudes'...but you've been warned. 

Steel Wheel Deal is Real!

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Steel is real.  And in the rain, steel rims are real slippery! Noisy and inconsistent wet weather brake action can be symptoms related to the widespread scourge of steel rims on older bikes.  Holler at us all you 70's and 80's Schwinn, Peugeot and Raleigh riders!  Those vintage bike manufacturers and many others once offered aluminum (AKA Alloy) rims as major upgrade to cheaper steel rims on basic wheelsets.  Today, the lighter weight and better brake action of aluminum rim surfaces are standard features on almost all new bikes of decent quality.

As a service to our vintage bike riders who need better brake action, we are discounting labor to upgrade to a new set of alloy wheels and fresh brake pads!  Dropping the pounds (yes, in many cases making your bike pounds lighter) by ditching your old steel wheels for an alloy wheelset will improve handling and acceleration.  In short, alloy wheels are the best possible safety and performance upgrade you can make to any vintage ride with steel rims!  Stop in for us to check out your bike and give you a full estimate for this great deal.

The Fine Print: Our "Steel Wheel Deal" is 25 bucks (normally $40) and covers installation and adjustment of a new alloy wheelset plus the installation and adjustment of wet weather specific brake pads (if available).  Labor charge does NOT include parts.  The offer only applies to replacement of both front and rear wheels and cannot be applied individually or split between two bikes.  Must be present to win.