proline delta is junk...the carbon fiber one that has smaller diameter, (i think it's the delta) i got it so i (small hands) and my 5 year old daughter (smaller hands) could ride longer without the hand cramps..the two plugs came out both ends first day and the grip unraveled the 3rd day...they give you two grips...now i know why you gotta retape it weekely!
we use the proline lg 2 years still going strong...my 2 cent
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