Jason Holder’s 5.3kg 2019 Trek Emonda SLR RSL leaves completely no stone unturned within the pursuit of final lightness.
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From a glued-on saddle and Garmin bike laptop mount, to shaved-down Boa dials, Holder has embraced the weight-weenie trigger totally.
Holder will journey the bike on the 2023 Hill Climb National Championships in Ambleside. This is his first National Championships however the bike has already seen racing motion, with Holder taking third place on this yr’s version of the Haute Route Alps.
Fettled ending equipment
Holder’s 2019 Trek Emonda SLR RSL frameset was stripped proper again to reveal carbon for a earlier construct.
Since then, Holder has repainted the bike yearly utilizing common spray paint at the price of round 2 grams a coat – a weight he deems “worth it to have a nice-looking blue bike.”
Top-spec Trek Emonda frames function an built-in seatmast.
Holder has stripped his seatmast again to uncooked carbon and changed the inventory clamp with a Darimo Sub4.
For this hill climb-specific construct, Holder has eliminated the rails from his Coco Design Spline saddle and glued it to the highest of the seat mast. That, in fact, means adjusting the saddle angle is out of the query.
The cockpit contains an Extralite Hyper stem and 40cm large Prime Primavera X-Lite bars.
A customary plastic quarter-turn Garmin mount has been shaved down and glued to the stem to put off the rubber mounting bands.
The lever of the right-hand SRAM Red shifter has been sanded again to uncooked carbon. This is paired with a sawn-down Shimano Di2 left-hand shifter.
The inventory metal clamp bolt on the left-hand shifter has been changed with an alloy bolt to save lots of 4g. Being a hill climb bike, it’s no shock neither options hoods.
The SRAM Rival CX1 rear derailleur has been closely modified.
To begin, it’s been drillium-d to inside an inch of its life and polished again to uncooked alloy.
The limit screws have additionally been changed with plastic screws and the inventory metal pivot pins have been swapped for alloy pins pinched from a SRAM XO derailleur.
For The Struggle, Holder has opted for a 12-32t cassette pared down from 11 to only 7 cogs. This is paired with a 46t Absolute Black chainring mounted to a Quarq energy meter-equipped SRAM Red crankset.
For a steeper climb, he would typically run a 12-25 cassette and a 34t chainring. This brings the bike’s weight all the way down to 4.8kg, in response to Holder.
Mods past the bike
Holder’s weight-saving mods transcend his bike.
His Specialized Exos sneakers – among the many lightest highway biking sneakers on the market already – function trimmed-down Boa dials.
His cleat mounting bolts have been changed with two alloy bolts and one titanium bolt. Two of the three cleat washers are produced from cut-down alloy internal chainrings.
Holder revealed he additionally glued the cleats to his sneakers and feels he may forego bolts altogether.
Jason Holder’s 5.3kg 2019 Trek Emonda SLR RSL
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- Frameset: 52cm 2019 Trek Emonda SLR RSL
- Wheelset: Shimano Dura-Ace C24
- Tyres: Vittoria Corsa Evo CX 21mm
- Rear derailleur: Modified SRAM Rival CX1
- Crankset: SRAM Red with Quarq energy meter, 165mm, 46t Absolute Black chainring
- Right-hand shifter: SRAM Red 22
- Left-hand shifter: Modified Shimano Di2
- Seatpost + saddle: Modified Trek Emonda seatmast with permanently-affixed Coco Design Spline saddle
- Stem: Extralight Hyper
- Handlebars: Prime Primavera X-Lite, 40cm
- Total weight: 5.3kg