Results 1 to 6 of 6
  1. #1
    mtbr member
    Reputation:
    Join Date
    Jul 2015
    Posts
    4

    Scott spark JR 20 upgrades - lower gear

    read a lot about some of the upgrades performed on the spark 20.
    Still quite unclear on what i could do to improve uphill capabilities of the bike.
    right now bike is still stock. Front shifter is useless. Kid cant change from 34 to 42 as the shifter is too hard for his little hands. 42t is useless anyway.
    He needs lower gears that currently available on stock bike.
    i cant drop too much dough on it too.
    So what would be the best option ?

  2. #2
    turtles make me hot
    Reputation: NYrr496's Avatar
    Join Date
    Sep 2008
    Posts
    8,714
    Could you make the crankset into a single with 28 or 30 teeth?
    I like turtles

  3. #3
    mtbr member
    Reputation:
    Join Date
    Jul 2015
    Posts
    4
    if i go single crankset, then i would have to switch to 9 speed i guess. any recommendations from spark / scale JR 20 modders ?

  4. #4
    turtles make me hot
    Reputation: NYrr496's Avatar
    Join Date
    Sep 2008
    Posts
    8,714
    Not if you rig up some kind of chain retention device on the chain ring.
    I like turtles

  5. #5
    mtbr member
    Reputation:
    Join Date
    Jun 2014
    Posts
    29
    Sell the bike to me and buy one with lower gearing? Why a switch to 9spd? My plans are cut down zee cranks with 30t front and 10spd rear, with anything up to a 42 expander.....
    2015 Dartmoor Primal
    2014 Banshee Spitfire
    2013/14 Hotrock 12/16 build
    ex-2010 Cube Lt Pro
    ex-2010 Commencal Meta 55

  6. #6
    mtbr member
    Reputation:
    Join Date
    Jul 2015
    Posts
    4
    i want to regear it since the 34t / 28 doesn't get him anywhere uphill

    thinking about going SS with 34t. I guess i'll have to get sinz expert square taper cranks (140mm) + BB + 34t chainring + chainguide
    Any recommendations/specs for these parts ?

    Then for the rear:
    9sp cassette 11-32 + rear derailleur + shifter (SRAM attack 9sp) ?
    Any recommendations/specs for these parts ?

Similar Threads

  1. Scott Spark Jr 20 Upgrades
    By Will Fisher in forum Families and Riding with Kids
    Replies: 1
    Last Post: 06-21-2015, 12:02 AM
  2. 2013 Scott Spark 610 26er or 2014 Spark 700 27.5'?
    By Aimant in forum Scott Sports
    Replies: 6
    Last Post: 04-06-2014, 08:03 AM
  3. 2013 Scott Spark 920 Upgrades
    By kojarena in forum Scott Sports
    Replies: 3
    Last Post: 02-15-2014, 02:40 PM
  4. Replies: 8
    Last Post: 03-24-2013, 07:04 PM
  5. Broken 2009 Scott spark lower linkage bolt.
    By maynard in forum Scott Sports
    Replies: 2
    Last Post: 04-23-2012, 12:32 PM

Members who have read this thread: 0

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •