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Thread: Variator, roller weights and contra spring mechanics for dummies! Learn how it works

  1. #106
    apriliaforum Member
    Join Date
    Dec 2015
    Cambridge, MA
    Ok - i think im understanding...i will probably stick with the touring pipe for now as I'm pretty new to CVT technology..and getting a 2000rpm clutch?...any direction?
    2004 Aprilia Mojito Retro 50cc
    2003 Vespa ET2 50cc
    2001 Triumph TT600
    1993 Yamaha Razz 50cc

  2. #107
    apriliaforum expert
    Join Date
    Jul 2015
    motoforce and naraku have cheap ones but the less money you spend the better because... touring class is slow like 60- 80 km/h. sport class is not much better once you start pushing wind.
    midrace has good power but the low end is the worst and the powerband is very short/ only 2000rpm long.
    full race has more lowend than the midrace or atleast as much but the powerband is atleast 4000rpm long.
    --- diploma for engine repair in 2012 --- powder coat painting --- porting and polishing --- custom aluminum parts and machining --- ditech fuel pump service.

    derbi bullet 2006 - piaggio AC - malossi torque driver half - custom GPS dash - TPR 70CC - topperf crank - vl13 reed and spacer- yamaha rt180 kickstand - giannelli shotV4 - phbg 21mm - doppler mesh top venturi filter

    complete wtp volta bmx 2012 - sanko seamless japanese cromoly heat treated and blueprinted frame - 21lbs

    1992 lt250r suzuki quadracer - maier plastics -chromed shearer pipe - chromed works suspension - 220lbs

    previous vehicles - subaru legacy turbo 1991 - mazda mx6 turbo 1990.

    tamiya fighting buggy and sand scorcher

  3. #108
    apriliaforum newb
    Join Date
    Jan 2016
    Las Vegas
    Can anyone answer a question about a clutch for me? I have a 2006 Aprilia SR50 Factory Morini and am looking at clutches , will a 107mm Zuma clutch fit? Dr Pulley HiT 161301

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