Thursday, September 11, 2014

Proper Derailleur Maintenance

rear_derailleur.jpg
Few of us really appreciate how hardworking and integral the rear derailleur is until it stops functioning perfectly. Then you’re stuck with, at best, an imprecise and clattery ride. So the next time you climb with little—well, a little less—effort, give a nod to this marvel of engineering. Here’s how it works—plus tips to keep it running like new.

1. The upper area on the derailleur is the b-knuckle.

2. On Shimano and SRAM derailleurs, the b-tension adjuster fine-tunes the height of the guide pulley. On Campagnolo derailleurs, the adjustment is done via a screw near the p-knuckle.

3. To adjust cable tension, use the barrel adjuster.

4. The guide pulley keeps the chain in line as it moves from cog to cog during shifts.

5. The idler pulley helps hold tension on the chain regardless of gear choice.

6. The mounting bolt connects the derailleur to the frame.

7. The parallelogram linkage lets the chain move left and right and up and down the cassette while remaining parallel to the cogs.

8. High and low limit stops are usually found near the b-knuckle but sometimes on the front of the parallelogram. The low limit (often marked L) prevents shifts into the spokes; the high limit (marked H) prevents the chain from dropping off the smallest cog.

9. The p-knuckle holds both the guide pulley and a spring that keeps tension on the cage to hold the chain taut. Shimano’s XTR Shadow Plus (for mountain bikes) has a switch that increases spring tension and activates a friction stabilizer to keep the chain from bouncing in rough terrain.

10. The cable bolt pinches the shift cable in place. On most derailleurs, when the shift lever pulls on the cable, the derailleur moves up the cassette to a lower gear. The exception: Shimano’s low-normal derailleurs, on which it does the opposite.

11. The cage keeps the chain in line between the pulleys.

Clean and Adjust
For the best performance, position the guide pulley (4) roughly 6 to 7mm away from the cogs. If your chain skips when you shift to a lower gear, give the barrel adjuster (3) a half-turn counterclockwise (Tip: Think L for lower and for left turn). A higher gear? Try a halfturn clockwise. After cleaning, add a few drops of lube to the pivot points (there are eight) of the parallelogram linkage (7), cycle through a few shifts, then wipe off any excess lube. When you clean your chain, clear the muck from the inner and outer surfaces of both pulleys (4 & 5)—it collects at the base of their teeth.

Article From "Bicycling.com"

Other Related Articles and Pages:
-http://en.wikibooks.org/wiki/Bicycles/Maintenance_and_Repair/Derailleurs/Rear_Derailleur_Adjustment
-http://www.wikihow.com/Adjust-a-Rear-Bicycle-Derailleur

Friday, March 7, 2014

hey biking community...

I am still around, I have just been in the process of moving and getting my life in order lately,  now with spring coming up, I have some good posts that I am working on...

Keep on Biking...

Saturday, January 11, 2014

Shifting gears bike shop is closed

We are closed for a couple weeks, we are currently remodeling.  I will post when we are reopened.

Thanks,

Wednesday, January 1, 2014

New years day bike ride

HAPPY NEW YEAR everyone, welp here in Bemidji, MN we had our new years day bike ride.  Not as many people came out this year as last year, i think the temp scared people away.  It was -11 degrees out.  I was one of them that rode, i lead the ride most of the way.  We started at the Cabin Coffeehouse Café 

and went down to our waterfront, 
then to the Sanford event centre.
The ride was 7 miles long, i only went for 5 because my toes got really cold...  Two of the riders; Natalie and Shaun went all the way around Lake Bemidji, ( thats 17.6 miles long).  We ended at the Cabin Café with hot chocolate/coffee and chocolate chip cookies, yum!  We also had on display, the new Nice Ride bicycle that will be introduced to Bemidji in Early to mid April, 2014.  
Although it will be neon orange and have a basket on the front.  

Well i hope you all have a good new year, and lets bike our way into 2014...

Keep on Biking in the cold...

Wednesday, December 25, 2013

Guest writers

I have had some of you comment asking to either guest write on here or have me guest write on their website/blog.  I am willing to do both, but i can not access blogs or emails from the comment section for some reason.  So if you wanna talk about guest writing, please email me: bemidjiyehudamoon@gmail.com

-i have also had some of you ask for advice, if you want advice of writing, blog sites, starting your own blog, feel free to email me about that as well, im here to answer your questions.  No question is stupid either...

I hope to hear from you...

Keep on biking...

Merry Christmas to all

Happy holidays to everyone.  The new year is coming and so are new years resolutions.  And i have a few:

1: i will be putting new posts every thursday.
2: i will be winter riding more often.  ( i have only riden my bike once this winter).

!!!ATTENTION!!!

I am looking for guest writers for the new year.  If you want to be a guest writer please email me at: bemidjiyehudamoon@gmail.com, subject line: guest writer.  


Keep on Winter Biking...

Tuesday, December 24, 2013

Homemade Xtra-cycle

I have created an extended bicycle.  I am doing a few tweaks to it yet, but it rides in all 21 gears.  I used two bike frames that used 700c rims, i took the fork out of the black bike along with the handlebars.  Put the seat post of the red bike through the front tube, and into the seat tube of the red bike.  Then i took the right side of the crank assembly on the black off, and put a left crank arm on the right side with both arms facing same direction.  I put bolts through each pedal bolt hole, and thrugh the rear drop out of the red bike.  I  am going to try and build a few more in the next few weeks.  I will be updating my progress on them...

Keep on Biking....