--- product_id: 62311327 title: "Trenztek 0-60 Degree 90 mm Adjustable Bicycle Handlebar Extender MTB Bike Stem Riser Head Up Raiser" brand: "trenztek" price: "Rp41753" currency: IDR in_stock: false reviews_count: 8 url: https://www.desertcart.id/products/62311327-trenztek-0-60-degree-90-mm-adjustable-bicycle-handlebar-extender store_origin: ID region: Indonesia --- # 0-60° Adjustable 6061 T6 Aluminum Lightweight 270g Trenztek 0-60 Degree 90 mm Adjustable Bicycle Handlebar Extender MTB Bike Stem Riser Head Up Raiser **Brand:** trenztek **Price:** Rp41753 **Availability:** ❌ Out of Stock ## Summary > 🚴‍♂️ Elevate Your Ride, Elevate Your Game! ## Quick Answers - **What is this?** Trenztek 0-60 Degree 90 mm Adjustable Bicycle Handlebar Extender MTB Bike Stem Riser Head Up Raiser by trenztek - **How much does it cost?** Rp41753 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/62311327-trenztek-0-60-degree-90-mm-adjustable-bicycle-handlebar-extender) ## Best For - trenztek enthusiasts ## Why This Product - Trusted trenztek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Perfect Fit:** Designed specifically for 31.8 mm handlebars, ensuring a snug and secure fit. - • **Peace of Mind:** Comes with a 1-year warranty, so you can ride with confidence! - • **Sleek Aesthetics:** Frosted finish and fine workmanship that not only looks good but feels good. - • **Elevate Your Ride:** Transform your biking experience with a customizable height adjustment of up to 90 mm! - • **Precision Engineering:** Crafted from high-strength 6061 T6 aluminum alloy for durability and performance. ## Overview The Trenztek Adjustable Bicycle Handlebar Extender is a high-performance accessory designed for mountain bikes, allowing for a customizable riding position with a maximum height extension of 90 mm. Made from durable 6061 T6 aluminum alloy, it features a sleek frosted finish and is specifically designed for 31.8 mm handlebars. Weighing only 270g, it combines functionality with style, backed by a 1-year warranty. ## Description Trenztek 0-60 Degree 90 mm Adjustable Bike Stem Riser Fixed 31.8 mm Product Features: Material: 6061 Aluminum alloy, CNC machined Handlebar diameter: 31.8 mm/ 1'' Fork stem diameter: 28.6 mm/ 1 1/8 inch Angle: 0-60 degree adjustable Max height extension: 90 mm/ 3.5 inch Weight: approx 270 g Important Notice: The 31.8 mm model is only fit for handlebar diameter 31.8 mm/ 1.25 inch, please check your handlebar size before place an order. Warranty: 1 year warranty for the Trenztek 90 mm adjustable bike stem riser fixed 31.8 mm, free replacement within 1 year since purchase date if any quality problem Package including: 1 x 90 mm adjustable bike stem riser fixed 31.8 mm ## Features - Only fit for handlebar diameter 31.8 mm/ 1 1/4 inch, please check your handlebar size and choose right model (25.4 mm or 31.8 mm) - Constructed of high-strength 6061 T6 aluminum alloy - Frosted finishing, fine workmanship - 0-60 Degree rotatable, max height extension 90 mm/ 3.5 inch - Weight approx 270g, 1 year warranty ## Images ![Trenztek 0-60 Degree 90 mm Adjustable Bicycle Handlebar Extender MTB Bike Stem Riser Head Up Raiser - Image 1](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61vUfCxZrGL.jpg) ![Trenztek 0-60 Degree 90 mm Adjustable Bicycle Handlebar Extender MTB Bike Stem Riser Head Up Raiser - Image 2](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61b2Bp4ul5L.jpg) ![Trenztek 0-60 Degree 90 mm Adjustable Bicycle Handlebar Extender MTB Bike Stem Riser Head Up Raiser - Image 3](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61QkLxnOT5L.jpg) ![Trenztek 0-60 Degree 90 mm Adjustable Bicycle Handlebar Extender MTB Bike Stem Riser Head Up Raiser - Image 4](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61DmLAa9TVL.jpg) ![Trenztek 0-60 Degree 90 mm Adjustable Bicycle Handlebar Extender MTB Bike Stem Riser Head Up Raiser - Image 5](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/618wEWWHidL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ This has worked very well for figuring out your handlebar angle *by E***S on Reviewed in the United States on January 27, 2021* Original stem was too low and I needed a more upright riding position so I got this stem to figure out what angle I needed. I thought this wouldn't hold up and once I gauged what angle was most comfortable, I'd swap it out with a fixed stem of that angle. Over two years on and it's still holding up. I've hit some major jarring pot holes and been pounded by uneven concrete but it has held up to the point, I don't need to swap it out. ### ⭐⭐⭐⭐⭐ So far so good at 30 degree angle *by R***N on Reviewed in the United States on September 2, 2017* I have a 26" bike and it's just a bit too small for me. I don't like hunching over to the handlebars since I have to raise the seat for the best pedaling and the handlebar doesn't adjust. The solution? Raise the handlebars with this! Rides fine. One thing I did notice though is that I'm putting a lot of pressure down on the handlebars now with my arms. You'd think it would be the opposite: raised = less pressure because center of gravity is higher, but nope, it's like my arms are a part of the bike now, locked on to the handebars. It's OK, part of the workout. The brakes are also a bit easier to reach. Definitely recommend it for anyone that didn't buy a custom-fit bike. ### ⭐⭐⭐⭐ Works with a caveat *by V***K on Reviewed in the United States on September 1, 2017* Works well in the end. However the mentioned Torque is not sufficient since it came loose going over a bump in the middle of a ride. Luckily I carry an Allen wrench on my bike. However if you have carbon handlebars this may not work for you since the torque spec is likely for carbon. Otherwise you can tighten more than mentioned torque and this seems to work for me. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.id/products/62311327-trenztek-0-60-degree-90-mm-adjustable-bicycle-handlebar-extender](https://www.desertcart.id/products/62311327-trenztek-0-60-degree-90-mm-adjustable-bicycle-handlebar-extender) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-05-11*