--- title: Custom eMTB at 37lbs! description: We built a custom electric mountain bike for Lester Binegar of University bikes in Boulder Colorado. 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TECHNICAL GUIDE # Custom eMTB at 37lbs! 6 min read Nov 05, 2021 nick [Uncategorized](https://blog.zinn.bike/tag/uncategorized) [Testimonials](https://blog.zinn.bike/tag/testimonials) [e-bikes](https://blog.zinn.bike/tag/e-bikes) Nov 5, 2021, 1:09:34 PM [nick](https://blog.zinn.bike/author/nick) Share: [facebook-f icon](http://www.facebook.com/share.php?u=https://blog.zinn.bike/custom-emtb-at-37lbs) [linkedin-in icon](http://www.linkedin.com/shareArticle?mini=true&url=https://blog.zinn.bike/custom-emtb-at-37lbs) [Twitter icon](https://twitter.com/intent/tweet?url=https://blog.zinn.bike/custom-emtb-at-37lbs) [pinterest-p icon](http://pinterest.com/pin/create/link/?url=https://blog.zinn.bike/custom-emtb-at-37lbs) [envelope icon](mailto:?body=https://blog.zinn.bike/custom-emtb-at-37lbs) \[fusion\_builder\_container hundred\_percent="no" hundred\_percent\_height="no" hundred\_percent\_height\_scroll="no" hundred\_percent\_height\_center\_content="yes" equal\_height\_columns="no" menu\_anchor="" hide\_on\_mobile="small-visibility,medium-visibility,large-visibility" status="published" publish\_date="" class="" id="" border\_color="" border\_style="solid" margin\_top="" margin\_bottom="" padding\_top="" padding\_right="" padding\_bottom="" padding\_left="" gradient\_start\_color="" gradient\_end\_color="" gradient\_start\_position="0" gradient\_end\_position="100" gradient\_type="linear" radial\_direction="center center" linear\_angle="180" background\_color="" background\_image="" background\_position="center center" background\_repeat="no-repeat" fade="no" background\_parallax="none" enable\_mobile="no" parallax\_speed="0.3" background\_blend\_mode="none" video\_mp4="" video\_webm="" video\_ogv="" video\_url="" video\_aspect\_ratio="16:9" video\_loop="yes" video\_mute="yes" video\_preview\_image="" filter\_hue="0" filter\_saturation="100" filter\_brightness="100" filter\_contrast="100" filter\_invert="0" filter\_sepia="0" filter\_opacity="100" filter\_blur="0" filter\_hue\_hover="0" filter\_saturation\_hover="100" filter\_brightness\_hover="100" filter\_contrast\_hover="100" filter\_invert\_hover="0" filter\_sepia\_hover="0" filter\_opacity\_hover="100" filter\_blur\_hover="0" type="legacy"\]\[fusion\_builder\_row\]\[fusion\_builder\_column type="1\_1" layout="1\_1" spacing="" center\_content="no" link="" target="\_self" min\_height="" hide\_on\_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" hover\_type="none" border\_color="" border\_style="solid" border\_position="all" border\_radius="" box\_shadow="no" dimension\_box\_shadow="" box\_shadow\_blur="0" box\_shadow\_spread="0" box\_shadow\_color="" box\_shadow\_style="" padding\_top="" padding\_right="" padding\_bottom="" padding\_left="" margin\_top="" margin\_bottom="" background\_type="single" gradient\_start\_color="" gradient\_end\_color="" gradient\_start\_position="0" gradient\_end\_position="100" gradient\_type="linear" radial\_direction="center center" linear\_angle="180" background\_color="" background\_image="" background\_image\_id="" background\_position="left top" background\_repeat="no-repeat" background\_blend\_mode="none" animation\_type="" animation\_direction="left" animation\_speed="0.3" animation\_offset="" filter\_type="regular" filter\_hue="0" filter\_saturation="100" filter\_brightness="100" filter\_contrast="100" filter\_invert="0" filter\_sepia="0" filter\_opacity="100" filter\_blur="0" filter\_hue\_hover="0" filter\_saturation\_hover="100" filter\_brightness\_hover="100" filter\_contrast\_hover="100" filter\_invert\_hover="0" filter\_sepia\_hover="0" filter\_opacity\_hover="100" filter\_blur\_hover="0" last="true" border\_sizes\_top="0" border\_sizes\_bottom="0" border\_sizes\_left="0" border\_sizes\_right="0" first="true"\]\[fusion\_text columns="" column\_min\_width="" column\_spacing="" rule\_style="default" rule\_size="" rule\_color="" content\_alignment\_medium="" content\_alignment\_small="" content\_alignment="" hide\_on\_mobile="small-visibility,medium-visibility,large-visibility" sticky\_display="normal,sticky" class="" id="" margin\_top="" margin\_right="" margin\_bottom="" margin\_left="" font\_size="" fusion\_font\_family\_text\_font="" fusion\_font\_variant\_text\_font="" line\_height="" letter\_spacing="" text\_color="" animation\_type="" animation\_direction="left" animation\_speed="0.3" animation\_offset=""\] This bike was a really cool project. Lester Binegar, CFO of our favorite local Boulder Bike shop, [University bikes](http://ubikes.com), came to us with the idea to build his dream [e-bike](https://zinncycles.com/product/ezinn-custom-ebike/). Ubikes has been a cycling institution in Boulder for ages, so it was really cool to be able to build a bike for Lester. His idea was to make an electric mountain bike that would be great for commuting, trail riding, and gravel riding and we wanted to keep it as light as we could. Under 40lbs was the request, and we knew this would be a challenge. \[/fusion\_text\]\[fusion\_imageframe image\_id="2259|full" max\_width="" sticky\_max\_width="" skip\_lazy\_load="" style\_type="dropshadow" blur="" stylecolor="" hover\_type="none" bordersize="" bordercolor="" borderradius="" align\_medium="none" align\_small="none" align="center" margin\_top="" margin\_right="" margin\_bottom="" margin\_left="" lightbox="no" gallery\_id="" lightbox\_image="" lightbox\_image\_id="" alt="" link="" linktarget="\_self" hide\_on\_mobile="small-visibility,medium-visibility,large-visibility" sticky\_display="normal,sticky" class="" id="" animation\_type="" animation\_direction="left" animation\_speed="0.3" animation\_offset="" filter\_hue="0" filter\_saturation="100" filter\_brightness="100" filter\_contrast="100" filter\_invert="0" filter\_sepia="0" filter\_opacity="100" filter\_blur="0" filter\_hue\_hover="0" filter\_saturation\_hover="100" filter\_brightness\_hover="100" filter\_contrast\_hover="100" filter\_invert\_hover="0" filter\_sepia\_hover="0" filter\_opacity\_hover="100" filter\_blur\_hover="0"\]https://zinncycles.com/wp-content/uploads/2021/11/IMG\_0957-scaled.jpg\[/fusion\_imageframe\]\[fusion\_text columns="" column\_min\_width="" column\_spacing="" rule\_style="default" rule\_size="" rule\_color="" content\_alignment\_medium="" content\_alignment\_small="" content\_alignment="" hide\_on\_mobile="small-visibility,medium-visibility,large-visibility" sticky\_display="normal,sticky" class="" id="" margin\_top="" margin\_right="" margin\_bottom="" margin\_left="" font\_size="" fusion\_font\_family\_text\_font="" fusion\_font\_variant\_text\_font="" line\_height="" letter\_spacing="" text\_color="" animation\_type="" animation\_direction="left" animation\_speed="0.3" animation\_offset=""\] ### What the customer has to say... "Zinn Crew, To say I'm thrilled is an understatement!  I've owned 7 Ebikes and over 35 analog bikes in my career and this one is already my favorite.  From commuting to crushing gravel/pavement and riding gnarly singletrack, this bike does it all.  Thanks so much!!!" -L \[/fusion\_text\]\[fusion\_images picture\_size="auto" hover\_type="none" autoplay="yes" columns="3" column\_spacing="13" scroll\_items="" show\_nav="yes" mouse\_scroll="no" border="yes" lightbox="yes" hide\_on\_mobile="small-visibility,medium-visibility,large-visibility" class="" id=""\]\[fusion\_image image="https://zinncycles.com/wp-content/uploads/2021/11/IMG\_0960.jpg" image\_id="2262|full" link="" linktarget="\_self" alt="" /\]\[fusion\_image image="https://zinncycles.com/wp-content/uploads/2021/11/IMG\_0959.jpg" image\_id="2261|full" link="" linktarget="\_self" alt="" /\]\[fusion\_image image="https://zinncycles.com/wp-content/uploads/2021/11/IMG\_0956.jpg" image\_id="2258|full" link="" linktarget="\_self" alt="" /\]\[fusion\_image image="https://zinncycles.com/wp-content/uploads/2021/11/IMG\_0953.jpg" image\_id="2255|full" link="" linktarget="\_self" alt="" /\]\[/fusion\_images\]\[fusion\_text columns="" column\_min\_width="" column\_spacing="" rule\_style="default" rule\_size="" rule\_color="" content\_alignment\_medium="" content\_alignment\_small="" content\_alignment="" hide\_on\_mobile="small-visibility,medium-visibility,large-visibility" sticky\_display="normal,sticky" class="" id="" margin\_top="" margin\_right="" margin\_bottom="" margin\_left="" font\_size="" fusion\_font\_family\_text\_font="" fusion\_font\_variant\_text\_font="" line\_height="" letter\_spacing="" text\_color="" animation\_type="" animation\_direction="left" animation\_speed="0.3" animation\_offset=""\] Lester was able to have custom frame bags made the perfectly fit over the battery, providing a really cool look for the bike packing set up. He set the bike up with the ability to swap between a 27.5 plus and a 29er wheel set to give him the versatility he needed for the different types of riding he does. Then coupled with some modern trail bike geometry, the bike rides like a dream. \[/fusion\_text\]\[fusion\_images picture\_size="auto" hover\_type="liftup" autoplay="yes" columns="3" column\_spacing="13" scroll\_items="" show\_nav="yes" mouse\_scroll="no" border="yes" lightbox="yes" hide\_on\_mobile="small-visibility,medium-visibility,large-visibility" class="" id=""\]\[fusion\_image image="https://zinncycles.com/wp-content/uploads/2021/11/IMG\_0960.jpg" image\_id="2262|full" link="" linktarget="\_self" alt="" /\]\[fusion\_image image="https://zinncycles.com/wp-content/uploads/2021/11/image0.jpeg" image\_id="2277|full" link="" linktarget="\_self" alt="" /\]\[fusion\_image image="https://zinncycles.com/wp-content/uploads/2021/11/IMG\_0954-rotated.jpg" image\_id="2256|full" link="" linktarget="\_self" alt="" /\]\[fusion\_image image="https://zinncycles.com/wp-content/uploads/2021/11/IMG\_0961-rotated.jpg" image\_id="2263|full" link="" linktarget="\_self" alt="" /\]\[/fusion\_images\]\[fusion\_text columns="" column\_min\_width="" column\_spacing="" rule\_style="default" rule\_size="" rule\_color="" content\_alignment\_medium="" content\_alignment\_small="" content\_alignment="" hide\_on\_mobile="small-visibility,medium-visibility,large-visibility" sticky\_display="normal,sticky" class="" id="" margin\_top="" margin\_right="" margin\_bottom="" margin\_left="" font\_size="" fusion\_font\_family\_text\_font="" fusion\_font\_variant\_text\_font="" line\_height="" letter\_spacing="" text\_color="" animation\_type="" animation\_direction="left" animation\_speed="0.3" animation\_offset=""\] As we all know, geometry can make or break a bike. Lester had a good idea of what he was looking for, and Lennard Zinn has been designing great-riding bikes for 40 years. So when they put their heads together, the result is a ripping [Mountain bike](https://zinncycles.com/mountain-bikes/) that is super fun to ride to work and also get out on long dirt road and bike packing adventures. Below is the drawing of the bike that we create when designing any custom bike. \[/fusion\_text\]\[fusion\_imageframe image\_id="2275|full" max\_width="" sticky\_max\_width="" skip\_lazy\_load="" style\_type="" blur="" stylecolor="" hover\_type="none" bordersize="" bordercolor="" borderradius="" align\_medium="none" align\_small="none" align="none" margin\_top="" margin\_right="" margin\_bottom="" margin\_left="" lightbox="no" gallery\_id="" lightbox\_image="" lightbox\_image\_id="" alt="" link="" linktarget="\_self" hide\_on\_mobile="small-visibility,medium-visibility,large-visibility" sticky\_display="normal,sticky" class="" id="" animation\_type="" animation\_direction="left" animation\_speed="0.3" animation\_offset="" filter\_hue="0" filter\_saturation="100" filter\_brightness="100" filter\_contrast="100" filter\_invert="0" filter\_sepia="0" filter\_opacity="100" filter\_blur="0" filter\_hue\_hover="0" filter\_saturation\_hover="100" filter\_brightness\_hover="100" filter\_contrast\_hover="100" filter\_invert\_hover="0" filter\_sepia\_hover="0" filter\_opacity\_hover="100" filter\_blur\_hover="0"\]https://zinncycles.com/wp-content/uploads/2021/11/Screen-Shot-2021-11-05-at-10.56.25-AM.png\[/fusion\_imageframe\]\[/fusion\_builder\_column\]\[/fusion\_builder\_row\]\[/fusion\_builder\_container\] [Uncategorized](https://blog.zinn.bike/tag/uncategorized), [Testimonials](https://blog.zinn.bike/tag/testimonials), [e-bikes](https://blog.zinn.bike/tag/e-bikes) NI ##### Written by nick ## Related articles [View all blogs](https://blog.zinn.bike/) ### [![Plus-Size Cycling Clothing: Finding a Kit That Fits](https://blog.zinn.bike/hubfs/plus-size-cycling-clothing.webp) Plus-Size Cycling Clothing: Finding a ... 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