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  1. #1
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    Choosing rims and spoke count for hybrid bike upgrade.

    Greetings:

    I have a 11 year old 7 speed freewheel hybrid bike, stock 48x38x28 crankset, with stock 36H F/R spoked Alex Z-1000, 700c alloy rims. Current tires are 700x38c.

    I purchased a 11-28t cassette to replace the current freewheel rear wheel.

    I have been looking at various rims to replace my current wheel set. Also considering various sized tires, anywhere between 700x28C to 700x32c. Suggestions appreciated here.

    My weight is only 135-140lbs. The bike weighs about 33lbs. stock. Add accessories, water bottles, rear rack, rear bag, bell, fenders, etc., brings the total weight with 2 full water bottles to around 45lbs. So 140 + 45 = 185lbs. max weight.

    I use this bike for grocery shopping adding 10-30lbs. at times and general around town stuff. Other than that it is just my 130-140lbs. on the rear wheel. Also do 30-40 mile rides on weekends on all flat paved roads, no hills.

    Wheelsets I am looking at[/U]:

    1. Aeromax 700c wheelset: 24/24H spoked aero type rims for $120.00. Reviews are good, quite a few
    200lbs.+ guys report having no spoke issues and generally like the wheels for the money spent. So I'm
    thinking if they have no spoke issues at 200+lbs., then I shouldn't have spoke issues at 130-140lbs.
    Compatible with 8,9,10 speed cassettes. Spacer required for 7 speed cassettes.

    SPECIFICATIONS:

    * 100mm front wheel. 130mm rear wheel spacing.
    * Type-Road
    * Color: Various colors
    * Normal quick release skewered hubs
    * 24 spoke aero double wall alloy rims, machined sidewalls and black satin finish
    * Type: Clincher, tubed
    * Stainless Steel Black aero 3.0mm spokes
    * Patented 2-left/2-right spoke pattern
    * Drilled for Presta valve
    * Rim Width: 20mm (outer width)
    * Rim Width: 13.7mm (inner width)
    * Rim Height: 29.3mm
    * Spacing: front 100mm, rear 130mm
    * Weight: Front 980g/Rear 1220g. Total 2200G.

    2. 700c Black Hybrid Bike Mach1 Wheel Set/Shimano Hubs/DT Swiss 14 gauge spokes, 9 sets of 4 paired =
    36 F/R spokes, 135mm 8, 9, 10 Speed PR. Presta valve. $79.90+36.14 = $116.04.

    Shimano TX800 Hub (rear wheel)

    * Black Aluminum Hub
    * High Quality Seals over Premium Loose Ball Bearings
    * Reliable Shimano Cassette Freehub Body
    * 135mm dropout spacing for hybrid bicycles
    * 10mm hollow axle for standard quick release skewer
    * Accepts 8, 9 & 10 Speed Cassettes
    * Skewers included

    3. 700c Hybrid Bike Silver Wheel Set, Sun CR18/Shimano Hubs135mm/DT, 8, 9, 10 Speed. 32H F/R. Schrader
    valve. $99.90+27.34=$127.34. These rims are flat like and look similar to my stock rims.

    4. AEROMAX PRO HD 700c Road Bike Wheelset 36/36H 7-11s Shimano/SRAM Hub. $159.97 + 27.49 =
    $187.46.

    DESCRIPTION/FEATURES:

    * 100mm front wheel. 130mm rear wheel spacing.
    * Includes wheelset, skewers, rim strips, and 11 speed spacer
    * Hand built
    * Every wheel is stressed three times
    * Trued to a tolerance of .3"
    * Rim: 30mm med-V 6061 aluminum alloy pinned w/CNC sides
    * Spokes: Stainless Steel
    * Nipples: Brass
    * Nylon rim strips
    * Lightweight QR skewers w/machined levers and chromoly shafts
    * Bearings: Front: 2qty EZO Sealed Cartridge. Rear: 4qty EZO Sealed Cartridge.
    * Condition: New in box
    * Total weight: 2300G.

    Any suggestions or experiences with these wheelsets welcomed.

    Thanks, sumbikerguy.
    Last edited by sumbikerguy123; 08-29-15 at 10:45 PM.

  2. #2
    aka Phil Jungels Wanderer's Avatar
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    4, above......

    "Retirement is the best job I ever had!" Me, 2009


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  3. #3
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    Its either 3 or 4, the rest are rather "gimmicky."

    Paired spokes look cool but often mean proprietary parts (especailly rims). 24 spokes is only useful if you want to slice through the wind and usually means a heavier rim to offset the lack of strength

    32 spokes is all you need at your weight, 36 would just add weight for no benefit

    Rims get heavier the deeper they go, and beat up light riders more also.

    3 has Shimano hubs, which are very reliable and rebuildable. CR18 rims have been around forever and while not the sturdiest or lightest, they are dependable for everyday riding. DT spokes are a known quality. This wheel uses the most tried and true components and can be fixed or rebuilt very easily. Number 4 uses generic hubs which may be good, or not

    Get some proper Velox tape instead of the electrical tape/rubber band/plastic many use

    Schraeder to Presta can be fixed with an adaptor

  4. #4
    aka Phil Jungels Wanderer's Avatar
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    Considering the weight of your bike, loaded, 36 spokes will be beneficial! Never get cheaper, than when new!

    "Retirement is the best job I ever had!" Me, 2009


    Specialized Crosstrail Sport - '08
    Nishiki Sport - misappropriated from my youngest son (circa 1984)
    Marin Stinson - misappropriated by my youngest grandson - '01
    "The Beast" - 1990 Schwinn Airdyne (in the basement for winter torture)

  5. #5
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    Thanks for the answers. I'm adding one more wheelset to the list:

    Sun Ringle Venus Road Wheel Set: Pure RT100/RT320 hubs, Aero Road Bike Wheel. $130 delivered, ready to ride. They are built up with 24/24H F/R DT Swiss Competition Black Double Butted Spokes and DT Swiss Silver Alloy Nipples. This wheel set comes with rim tape installed on both rims and QR axles. The Pure RT series hub is a sealed cartridge bearing hub with axle spacing is 100mm front and 130mm rear. This is a Semi-Aero profile.

    Wheel set weight for the pair is 1649g. (698g Front/951g Rear). A 651G. difference or 1.43lbs. lighter than the Aeromax wheelsets above.

    Although this wheel set was a brand new canceled custom order, the warranty DOES NOT apply, the wheel set is sold AS-IS. (Made by another company).

    This $130 wheel set has the sealed cartridge bearings like the $187.49 Aeromax Pro HD wheelset above, at a $57.49 price difference.

    I don't know if this wheel set is double walled or not? If so then this wheel set with sealed cartridge bearings seems to be a good deal. Only kicker is no warranty and I'm not sure how the 24/24H spoke count will hold up over the long run on my hybrid bike?

    According to one online bike rim chart at my weight of 140lbs. or under recommended I could use 24/28H or 28/28H F/R rims w/o spoke issues.

    My current front hybrid tire/rim/tube weighs 1910G. The Aeromax Pro HD 36H front wheel weighs 1020G. Add 400-500G. for a tire = 1420-1520G. Add 320G. for a tube = 1720-1820G. max. So about a 100G. difference, not much of a weight saving over my stock 36H rim/tire/tube it appears.

    I thought I might get some weight savings using aero rims, but it doesn't appear that way. The main reason for upgrading my rims was to upgrade my 13-28t freewheel to a 11-28t cassette for my flat roads.

    I have already upgraded my brakes, cables, housing, shifters, rear derailluer, Ergon type grips. So I figure getting some decent rims for the new 11-28t cassette and chain might help in the shifting and performance department.

    Thanks, sumbikerguy.

  6. #6
    Senior Member ColonelSanders's Avatar
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    Quote Originally Posted by sumbikerguy123 View Post
    Greetings:

    I have a 11 year old 7 speed freewheel hybrid bike, stock 48x38x28 crankset, with stock 36H F/R spoked Alex Z-1000, 700c alloy rims. Current tires are 700x38c.

    I purchased a 11-28t cassette to replace the current freewheel rear wheel.

    I have been looking at various rims to replace my current wheel set. Also considering various sized tires, anywhere between 700x28C to 700x32c. Suggestions appreciated here.

    My weight is only 135-140lbs. The bike weighs about 33lbs. stock. Add accessories, water bottles, rear rack, rear bag, bell, fenders, etc., brings the total weight with 2 full water bottles to around 45lbs.

    I use this bike for grocery shopping adding 10-30lbs. at times and general around town stuff. Other than that it is just my 130-140lbs. on the rear wheel. Also do 30-40 mile rides on weekends on all flat paved roads, no hills.

    Wheelsets I am looking at:
    Some of the rear wheels you have listed have axle widths of 130mm and others 135mm.

    As your bike is a hybrid, you probably want a width of 135mm, but you should confirm this.
    You can have my Disc Brakes, when you pry them from my cold, dead hands.

  7. #7
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    Whats your rear spacing? If 135, I would stop looking at 130mm road wheels

  8. #8
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    Quote Originally Posted by DorkDisk View Post
    Whats your rear spacing? If 135, I would stop looking at 130mm road wheels
    R. I tape measured the rear dropout spacing at 5-1/4". So about 133mm.

    The Aeromax Pro HD's have a F/R spacing of 100mm/130mm. Fits 700c tires from 700 x 18mm to 42mm or more.

    Are you saying the 130mm rims won't fit my hybrid bike?



    Last edited by sumbikerguy123; 08-29-15 at 10:53 PM.

  9. #9
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    Quote Originally Posted by ColonelSanders View Post
    Some of the rear wheels you have listed have axle widths of 130mm and others 135mm.

    As your bike is a hybrid, you probably want a width of 135mm, but you should confirm this.
    R. I measured 5.25" with the wheel attached to the frame/rear dropouts.

    Sheldon Brown Frame/Fork spacing:
    130 mm Rear 7-speed (MTB) and 8- 9- and 10-speed (road).
    135 mm Rear 7- 8- and 9-speed (MTB)

    I'm no bike guru, but based on the above figures it appears either a 130mm or 135mm rear rim should work with my 7 speed hybrid bike. If you think otherwise, let me know.

    Thanks, sumbikerguy.
    Last edited by sumbikerguy123; 08-29-15 at 08:56 PM.

  10. #10
    Senior Member ColonelSanders's Avatar
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    Quote Originally Posted by sumbikerguy123 View Post
    R. I measured 5.25" with the wheel attached to the frame/rear dropouts.

    Sheldon Brown Frame/Fork spacing:
    130 mm Rear 7-speed (MTB) and 8- 9- and 10-speed (road).
    135 mm Rear 7- 8- and 9-speed (MTB)

    I'm no bike guru, but based on the above figures it appears either a 130mm or 135mm rear rim should work with my 7 speed hybrid bike. If you think otherwise, let me know.

    Thanks, sumbikerguy.
    The 130mm or 135mm spacing actually refers to the spacing of your bike's rear drop outs.

    Most hybrids have a 135mm spacing at the rear.

    The Sheldon Brown table you quoted showed that over the years there has been different spacings as standards have changed, but that doesn't mean that a wheel with a 7 speed cassette on it, fits in either a 130 or 135mm spacing.

    The wheel is designed to work in a specific spacing, and then the appropriate freehub & cassette will make it whatever speed it is.

    What is the make and model of your hybrid?

    It most likely is one with 135mm rear spaceouts.
    You can have my Disc Brakes, when you pry them from my cold, dead hands.

  11. #11
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    There is a 132.5 mm that allows running either.

    I would measure without the wheel as the cogs can interfere with the measurement.

    If you can run either, a 135mm will yield a stronger wheel due to dish

  12. #12
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    It most likely is one with 135mm rear spaceouts.

    R. I don't have a steel mm ruler, but using a regular steel tape ruler, the dropout measures exactly 5.25" or 133mm. So its like in between 130-135mm. Talking a few mm's either way, not sure if it matters that much in my situation? Shims?

  13. #13
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    Quote Originally Posted by DorkDisk View Post
    There is a 132.5 mm that allows running either.

    I would measure without the wheel as the cogs can interfere with the measurement.

    R. I did take the wheel off this time, same 5.25" measurement.

    If you can run either, a 135mm will yield a stronger wheel due to dish
    R. Not to hip on the dish part yet, but I'll take your word for it.

    So I should be looking for rims that use 135mm spacing, not 130mm. Not sure if I worded that correctly?

    Thanks.

  14. #14
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    Quote Originally Posted by Wanderer View Post
    4, above......
    R. Thanks, that wheel set has a 130mm rear wheel. From what I'm hearing here I should be looking at a 135mm rear wheel. Nice wheel set though.

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