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 130g 25.4 x 585mm MEREK white full carbon MTB Full Carbon bike flat Handlebar  US $59.00
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 MEREK MTB Full Carbon bike flat Handlebar 25.4 x 585mm US $59.00
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Featured Article:
Kent Dual Drive Tandem Comfort Bike - Great for Cruising
By M. Meador
I ordered the Kent Dual Drive Tandem Comfort Bike and it took about 5 days to arrive. I expected this to be a "BICYCLE KIT" and it met my expectations 100%. I removed every component from the frame one by one and inspected/lubed/re-assembled back on the frame and adjusted. The ONLY thing that had even a trace of grease on it was one of the bolts for the stoker handlebar clamp(Seriously). Every bearing was dry. The rear wheel was missing 5 balls on the gear side.I mic'ed the balls on all the bearings and all were within .0001 in. or less difference. Both tires had maybe 10 pounds of air in them. I let what little air out and pulled the tires to inspect the wheels and spokes.
The spoke strip on the rear wheel was pushed over and not covering the spokes in two spots so there was a sure flat if I would have just put air in it without checking. The front tire was OK. The front wheel was within .080 in. of true both horizontal and vertical. The rear wheel was out approx .600 in. horizontal and .080 in. vertical. It wouldn't even roll without the tire hitting the frame. I trued both wheels to +/- .020 in.("close enough" for a bicycle) along with setting a little backlash on the spokes in the process. As with everything else on the bike, The brakes and both derailers weren't even close to being adjusted correctly. The return springs on the rear brakes were in different holes.
When adjusting the derailers I noticed the rear derailer was bent. I called the toll free # for Kent customer service and told the lady the problem. With no questions asked, she took my name and address and said she would get another derailer in the mail that day and I didn't need to send the bad one back. A close look at the frame and no cracks,bends or dents were found. The welds are not as pretty as they could be but they didn't look bad at all and showed signs of good penetration at the weld edges. While waiting for the new derailer I peeled off about 10 pounds of stickers and installed some aftermarket fenders,a rear cargo rack, two bells (The stoker has to have fun too),rear view mirrors and naturally some streamers on the handlebars.
The replacement rear derailer arrived in three days. I'm VERY happy with their customer service. After assembling the tandem "KIT" and adjusting the seats and handlebars we took it out for a "Maiden Voyage" of 31 miles. The bike rode really well. The frame was MUCH STIFFER than our old Columbia tandem. Shifts were smooth, quick, precise and quiet. No "Auto shift" from frame flex on take off or climbs. The brakes worked nicely and took very little finger pressure to stop on the small hills we encountered. I think the supplied Velo seat will have to be replaced for me but my Wife seemed to like her seat OK so far.
We managed to hit our fair share of bumps and pot holes along with going down some rough gravel roads so I was wondering how things were holding up. After we got home I looked everything over and all was as it should be. I didn't use the dial indicator again but "eyeballed" the wheels judging with the brake pads and spinning the wheels and they seemed to hold true. We really like the bike. It does just what it was designed for (cruising around the neighborhoods) and does it well. It's just what we hoped for and expected and we think it's well worth the $248.00 shipped.
We had a BLAST riding "twogether" through the neighborhoods of three small towns Sunday. If someone is looking for a cruiser tandem and can assemble the "KIT" themselves then I would recommend the Kent Dual Drive Tandem Comfort Bike. If you are not comfortable doing the work then I suggest talking with a local bike shop, Give them the list I posted here in this review of the things I HAD TO DO to assemble the bike for an example and get a estimate. It might cost more than it's worth if you have to go that route. Even with the missing ball bearings, I give it 4 stars for the style and price. Heck,you can't expect "top of the line" quality on a $248 tandem.
About the Author
Kent Dual Drive Tandem Comfort Bike
I need help with my math homework...?
Bike Shop.
1.some vehicles have sold and new models have been brought into the wheel shop.Now there are a different number of bicycles, tandem bicycles, and tricycles in the shop.There are a total of 135 seats, 118 front handlebars (that steer the bike), and 269 wheels.
2.In the back stockroom at the wheelshop, the number of seats and horns equaled the number of wheels. the number seats and handlebars equaled the number or horns.Twice the number or wheels is equal to three times the number of handlebars.Determine the relationship of horns to seats.
3.The repair department of the bicycle shop repairs three things: flat tires, bent handle bars and ripped sats. today in the repair department, 25% of the bikes had flat tires only, 5% had bent handlebars only, and 10% had ripped seats only. Just 1/12th of the bikes had all three repair to do: flat tires, bent handlebars and ripped seats. No bikes were completley fixed and there are a total of 101 repairs to be made.
x=bikes
y=trikes
z=tandems
x+y+2z=135 (seats)
x+y+z=118 (total front handle bars=total # of bike)
multiply each side by -1 and add it to the other equation
-1(x+y+z)= -1(118) ----> -x+-y+-z=-118
x+y+2z=135
+
-x-y-z=-118
z=17
plug z back in one of the original equations and you get
x+y=101
then you can also create an equation for the number of wheels. 2x+3y+2z=269 z=17 so 2x+3y+34=269
subtract 34
2x+3y=235
now we have to use substitution
x+y=101
x=(101-y) <--- substitute this into the other equation for x
2(101-y)+3y=235
202-2y+3y=235
bring 202 over add y values
y=33
then add that into the simplest equation x+(y=33)=101
x=68
That should basically give you the idea how to solve the other one's too
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