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  1. #1
    Member
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    Feb 2014
    My Bikes
    13 Volagi, 12 Scott Foil 10, 13 Scott Scale, 10 Ridley xfire, 12 Cannondale Tandem, 06 Raliegh Tandem, 10 Stevenson Tandem
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    New Tandem Build - Would like input

    Calfee Tetra with Thru Axle drop outs
    Whiskey Carbon #9 road fork Thru Axle
    Lightning Cranks 50/34
    Gates Belt
    Utegra DI2 11 spd 11/32
    Dual Disc Brakes (probably the new Shimano Hydraulic Road, if not TRP Hy/RD)
    Enve SES 3.4 carbon rims
    White Ind Thru Axle Center Lock hubs 24 spoke
    Thomson Masterpiece Post
    Thomson Stem
    Bars - not sure yet (both will be drop)


    Based in the Pacific Northwest
    Team Weight 300lbs
    Tandem Use - Road Racing/Time Trialing/Team Rides/ Group Rides/ Supported Tours
    Riding tandem for more than a decade

    I would really appreciate some input on my current plan.

    Thanks in advance,
    Plowhorse

  2. #2
    rebmeM roineS JanMM's Avatar
    Join Date
    Jan 2006
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    Indiana
    My Bikes
    RANS V3, RANS V-Rex, RANS Screamer
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    Is 50-11 high enough for your intended uses?
    RANS V3 (steel), RANS V-Rex, RANS Screamer

  3. #3
    Senior Member
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    Nov 2007
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    Anchorage, Ak
    My Bikes
    Calfee Tetra tandem, Ventana ECDM 26, Ventana ECDM 29r, Orbea Orca, Maverick ML8
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    Quote Originally Posted by JanMM View Post
    Is 50-11 high enough for your intended uses?
    The lightning cranks have interchangeable spiders so it is relatively simple to go to standard chainrings if you need larger gearing. I would recommend the new Shimano brakes as us and number of others have had issues with the TRP Hy/Rd for tandem usage. I played with the Shimano units at Interbike and power and modulation is far superior to the TRP unit. Calfee can do a very clean install of the Di2 including putting the front junction box in the stem for their " clean look install" They have a long track record with DI2.

  4. #4
    Member
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    13 Volagi, 12 Scott Foil 10, 13 Scott Scale, 10 Ridley xfire, 12 Cannondale Tandem, 06 Raliegh Tandem, 10 Stevenson Tandem
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    I agree that we may spin-out a 50 in a road race and or time trial, as JanMM stated, I can change out the rings easily on the lightning cranks... I am also hoping that Shimano brings out a 11 spd mtn group so I can run a larger cassette in the rear which will give me the ultimate gearing options.

  5. #5
    Senior Member
    Join Date
    Nov 2007
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    Anchorage, Ak
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    Calfee Tetra tandem, Ventana ECDM 26, Ventana ECDM 29r, Orbea Orca, Maverick ML8
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    You can get a 11-36 11 speed cassette right now through any Santana dealer. Bill McCready built some custom cassettes to Shimano specs in 11 speed. He had a complete 11-speed drive train at Interbike using the 11 speed cassette and K-edge rear derailleur modification and has even adapted Dura ace chainrings to his carbon cranks. He was able to match up the dura ace esthetics quite nicely. He is a running an 11-speed cassette body on the a set of spinergy wheels. It shifted very nice in the stand . He has been a strong proponent of Di2 since its inception. I am going to get a cassette body for my wheels, a cassette, an 11 speed derrailleur and move my k-edge cage and upgrade my system to 11 speed and all the rest of the components will work fine. you will need the K-edge cage for the rear derailleur if you want to run an 11-36 cassette as even the Gs cage version will only run an 11-34 at best according to Shimano tech reps.

  6. #6
    Member
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    Thanks Akexpress, I didn't know Santana had an 11 spd option.

  7. #7
    Senior Member
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    Wind Tunnels of Cheyenne
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    Burley Duet [of some unknown year]; And always one less than I think I really need.
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    There was talk elsewhere in this forum (sorry, I can't link to it due to website and screen-reading software not playing nice) about the 12x142mm TAs, and something about being able to run a 10- or even 9-tooth cog on a 12x142 hub...Thoughts on adding this to the 36-11 cassette and reprogramming shifters for 11 speed? 50/10 would give a higher ratio than a 53/11 (and 53/9 would have you passing cars on the interstate).

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