threadless stem riser and adjustable extension question
#1
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From: Kalamazoo, MI
Bikes: 28 yr. old Ross Mountain bike to going strong, Leman's century, Cannondale quick 3 with mid-drive Bafang and 750 watt battery. Just purchased a Navara Safari 2015. Need to make a few adjustments and find some fenders to fit.
threadless stem riser and adjustable extension question
I have two issue with my navara safari. 1st the butterfly bars are to low, so I've purchased a stem riser which I think will bring the bars up to seat level. 2nd is the real question; I am thinking of purchasing an adjustable stem riser and reversing it towards me to bring the bars closer to me so that I'm not stretched out and putting pressure unduly on my hands. I need about 3 inches closer to me. Perhaps a 80 or 90 mm extension will do it. Is there an issue with reversing the stem extension? I will need to change the cables for sure! What is your experience with this issue and how did you solve it? I like the bars for the multiple hand positions so would like to keep them if at all possible.
#2
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A Dimension stem riser I have on all my bikes.
The stock stem is simply set too low for comfortable riding in an upright position even when set at maximum extension.
A stem riser adds about 3" to that and then when you put the stock stem on it you discover the fit finally feels right.
That may have something to do with my being a short guy at 5'7". Don't forget to experiment with stems of differing lengths if necessary to fine tune your fit.
The stock stem is simply set too low for comfortable riding in an upright position even when set at maximum extension.
A stem riser adds about 3" to that and then when you put the stock stem on it you discover the fit finally feels right.
That may have something to do with my being a short guy at 5'7". Don't forget to experiment with stems of differing lengths if necessary to fine tune your fit.
#3
If you need to bring the stem in 3",you might not have the right size bike. How tall are you and what size did you get?
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C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Brompton S6L/S2E-X/M6L-X/S12 T Line


C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Brompton S6L/S2E-X/M6L-X/S12 T Line

#4
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Joined: Dec 2014
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From: Kalamazoo, MI
Bikes: 28 yr. old Ross Mountain bike to going strong, Leman's century, Cannondale quick 3 with mid-drive Bafang and 750 watt battery. Just purchased a Navara Safari 2015. Need to make a few adjustments and find some fenders to fit.
I'm 5'9" and have a 54. I like a more up right position. So the question is: does it matter that much if I reverse the adjustable extension?
#5
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From: NW,Oregon Coast
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I got a BBB BHP 21 wiggle.com | BBB BHP-20/21 Stem Extender | Oversize Stems **
to set up this Bike WB Bicycle Gallery: Robert Clark's Koga Miyata WTR
as the bars come up they also move back so maybe a short Non adjustabe stem at the top of your stem riser will Do, or the Up Angle may be sufficient ..
Cant really say with out seeing the Bike and all the parts .
some Guys Vid ** https://www.youtube.com/watch?v=TRpEjDP2u1M
to set up this Bike WB Bicycle Gallery: Robert Clark's Koga Miyata WTR
as the bars come up they also move back so maybe a short Non adjustabe stem at the top of your stem riser will Do, or the Up Angle may be sufficient ..
Cant really say with out seeing the Bike and all the parts .
some Guys Vid ** https://www.youtube.com/watch?v=TRpEjDP2u1M
Last edited by fietsbob; 02-11-15 at 12:53 PM.
#6
If by this you mean that you want to install the stem so that it points towards you, no, if you have to lean forward that much you have a serious problem with your bike fit
#7
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I have the right size bikes - the stock steerer on threadless forks is cut to a preset length and is too low even with stacked spacers. Hence the need for a stem riser to get the bars up high enough for comfortable riding.
#8
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Joined: Dec 2014
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From: Kalamazoo, MI
Bikes: 28 yr. old Ross Mountain bike to going strong, Leman's century, Cannondale quick 3 with mid-drive Bafang and 750 watt battery. Just purchased a Navara Safari 2015. Need to make a few adjustments and find some fenders to fit.
Thanks for the input, I'll experiment and post pictures when the solution fits my needs.
#9
The OP's not talking about raising the stem,he's talking about moving it back 3" toward him. Basically reversing it. That's now how properly fitted bikes are configured.
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C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Brompton S6L/S2E-X/M6L-X/S12 T Line


C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Brompton S6L/S2E-X/M6L-X/S12 T Line

#10
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From: Kalamazoo, MI
Bikes: 28 yr. old Ross Mountain bike to going strong, Leman's century, Cannondale quick 3 with mid-drive Bafang and 750 watt battery. Just purchased a Navara Safari 2015. Need to make a few adjustments and find some fenders to fit.
My Navara Safari is a medium which I equate to approximate 54 size.
#11
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From: Above ground, Walnut Creek, Ca
Bikes: 8 ss bikes, 1 5-speed touring bike
proper fit? it's personal. put the stem however you like. you'll find out soon enough if it's what you want.
Last edited by hueyhoolihan; 02-12-15 at 10:39 AM.
#12
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From: Looney Tunes, IL
Bikes: Wabi Special FG, Raleigh Roper, Nashbar AL-1, Miyata One Hundred, '70 Schwinn Lemonator and More!!
I would never recommend running a stem reversed. Steering will be wonky.
Just raise the bars and give it some time to see how it works.
Just raise the bars and give it some time to see how it works.
#13
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From: Sacramento
Bikes: 2014 Dawes Lightning 1000.1990 Schwinn Voyuager. 1997 specialized Crossroads Hybrid.
Sell you bike and get one made for upright position riding. Like a vintage schwinn three speed. Very comfortable to ride.
#14
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From: Kalamazoo, MI
Bikes: 28 yr. old Ross Mountain bike to going strong, Leman's century, Cannondale quick 3 with mid-drive Bafang and 750 watt battery. Just purchased a Navara Safari 2015. Need to make a few adjustments and find some fenders to fit.
I have purchased a 120mm stem riser and plan to also purchase a 80 or possibly a 95mm adjustable stem which I will reverse and position it on the stem riser up or down and angle the adjustable stem to tune in the reach and height. Butterfly bars will be adjusted up or down also. Turning the bike 20 degrees left or right with stem forward or backwards will still be 20 degrees. I think its where your center of gravity is that counts the most. I care more about how it feels more then how it looks. All comments are appreciated and once I'm on the road and have put some milage in I'll get back here to post. Being in Michigan, it may be a little while though!
#16
I have purchased a 120mm stem riser and plan to also purchase a 80 or possibly a 95mm adjustable stem which I will reverse and position it on the stem riser up or down and angle the adjustable stem to tune in the reach and height. Butterfly bars will be adjusted up or down also. Turning the bike 20 degrees left or right with stem forward or backwards will still be 20 degrees. I think its where your center of gravity is that counts the most. I care more about how it feels more then how it looks. All comments are appreciated and once I'm on the road and have put some milage in I'll get back here to post. Being in Michigan, it may be a little while though!
#17
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Joined: Dec 2014
Posts: 10
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From: Kalamazoo, MI
Bikes: 28 yr. old Ross Mountain bike to going strong, Leman's century, Cannondale quick 3 with mid-drive Bafang and 750 watt battery. Just purchased a Navara Safari 2015. Need to make a few adjustments and find some fenders to fit.
Your point is well taken and the ultimate outcome may be quite different from original intentions. Will begin the experiment on Sunday........stay tuned for the on going battle of bike Vs man.
#19
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From: Kalamazoo, MI
Bikes: 28 yr. old Ross Mountain bike to going strong, Leman's century, Cannondale quick 3 with mid-drive Bafang and 750 watt battery. Just purchased a Navara Safari 2015. Need to make a few adjustments and find some fenders to fit.
Thanks for the Pic! How does it handle?
#20
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From: Kalamazoo, MI
Bikes: 28 yr. old Ross Mountain bike to going strong, Leman's century, Cannondale quick 3 with mid-drive Bafang and 750 watt battery. Just purchased a Navara Safari 2015. Need to make a few adjustments and find some fenders to fit.
Threadless adjustable stem project completed
Well after all the comments an insights here is the finally product with lots of possibility for tweaking it as I feel the need. I can turn the bars 180 degrees and lower the stem adjuster or raise it or leave as it is and raise it more if I want. Just like to say thanks to those who had constructive criticism.
#21
Tortoise Wins by a Hare!
Joined: Feb 2006
Posts: 7,393
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From: Looney Tunes, IL
Bikes: Wabi Special FG, Raleigh Roper, Nashbar AL-1, Miyata One Hundred, '70 Schwinn Lemonator and More!!
Well after all the comments an insights here is the finally product with lots of possibility for tweaking it as I feel the need. I can turn the bars 180 degrees and lower the stem adjuster or raise it or leave as it is and raise it more if I want. Just like to say thanks to those who had constructive criticism.
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bryroth
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02-12-10 01:56 AM







