Thu. Sep 19th, 2019

There’s a New Participant in Bike Drivetrains: Meet the TRP DH7

Two manufacturers, Shimano and SRAM, have dominated the mountain bike drivetrain marketplace for many years. Immediately, a brand new participant, TRP, launches a drivetrain it hopes will shatter the duopoly.

Take into account the drivetrain of a bicycle. The chain, crank, and derailleurs are the transmission of the bike. Put merely, apart from gravity, they’re what makes it go, turning vitality out of your legs into ahead movement.


And for many years, most high quality mountain bikes by practically each model used a drivetrain from one in all two manufacturers, Shimano or SRAM. So when TRP introduced its new seven-speed drivetrain, the DH7, at Eurobike as we speak, it was David swinging a rock at two very massive Goliaths.

However whereas TRP (TEKTRO Racing Merchandise), a model recognized for bicycle brake programs, could also be an underdog in incomes a market share with a brand new drivetrain, it has some big-name riders and fascinating tech behind the pitch.

Let’s check out the brand new drive and dive into some specs.

TRP DH7: A Downhill Drivetrain

The very first thing value noting is that TRP entered the drivetrain market in a particular area of interest: downhill and enduro using.

The DH7 goals for the gravity-focused rider with this shifter and derailleur. Engineers constructed it for “tough and rocky rides on huge bikes with 200 millimeters of journey.”

And it enlisted some huge names within the challenge. The TRP DH7 collection drivetrain elements are the results of teamwork between TRP R&D Taiwan, TRP USA, and five-time DH World Cup General Champion Aaron Gwin in cooperation along with his mechanic, John Corridor.

“It’s a fairly sophisticated challenge to make a derailleur. There are quite a lot of patents and all types of issues it’s a must to work round, so that you’ve bought to be actually progressive to search out your personal strategy to do issues and in addition make it higher,” stated Gwin.

The model began its drivetrain push with simply two merchandise: a derailleur and a shifter.

TRP Derailleurs

TRP has a giant push with its derailleur: to be the quietest bike on the monitor. Corridor recognized the motion of the derailleur across the B-knuckle as one of many factors for enchancment. This impressed the thought to lock the B-knuckle to the bike‘s derailleur hanger. Thus, TRP invented the Corridor Lock.

TRP-John-Hall-DH7-ClutchAdjustAdjusting the clutch of the TRP DH7

The Corridor Lock is a lever built-in into the mount, which might be opened or closed as wanted. When engaged on the derailleur or altering the wheel, the Corridor Lock is opened. When closed, the derailleur is locked to the body and is stabilized within the roughest circumstances. This helps preserve accuracy in shifting and chain retention. Its clamping power might be adjusted to stability stability and safety with the derailleur’s capacity to deflect on affect.

However on account of suspension journey, a sequence loosens when the suspension is compressed. That is known as “chain progress,” and it varies from bike to bike. To handle this, the group designed adjustability into TRP‘s ratchet-style clutch. If a rider desires to unencumber the system, they will again off the clutch to stability pedal suggestions with the clutch’s chain-retaining properties.

DH7 Derraileur Specs

Corridor Lock
G-Spec ratchet clutch
Carbon fiber cage and higher hyperlink
Additional-wide parallelogram pivot
Sealed cartridge bearings pulleys

TRP D7 Shifter


Most bike shifters work with a easy system that shifts up or down with a single press of a button. However TRP claims it modified the trail the button travels to 1 that mimics the movement of a rider’s thumb quite than rotating away. It’s a singular ergonomic strategy the model claims maintains constant thumb contact and total higher grip and shifting efficiency.

TRP D7 Shifter Claims

Shift levers designed and situated for optimum efficiency by Aaron Gwin
Enhanced grip and tactile really feel constructed into lever paddles: embossed grooves on
advance and launch lever
Carbon fiber higher housing and advance lever
Ball-bearing geared up
Instrument-free straight lace cable modifications
Rider-adjustable house place of the decrease lever with a 40-degree vary


General, it’s a compelling new system, and we like to see new competitors come up within the high-tech world of drivetrains. Whereas we haven’t had an opportunity to check these but, we’re excited to see innovation from a brand new model proper out of the gate.

DH7 Rear Derailleur Specs

Speeds: 7
Weight: 272 g
Supplies: Cast aluminum and carbon fiber
Colours: Black, gold, silver
Outer cage: Cast aluminum
Chain compatibility: 11-speed
Inside cage: Cast aluminum
Spring: Stainless
Bearings: Sealed chrome steel
Cage sizes: 7-speed
Mount choices: Corridor Lock
Max tooth: 25
Pulleys: 11t pair
B-knuckle Corridor Lock
Clutch: Ratchet clutch expertise
Retail availability: 2019

DH7 Shifter Specs

Speeds: 7
Weight: 120 g
Supplies: Aluminum and carbon fiber
Colours: Black, gold, silver
Advance lever: Carbon fiber
Compatibility: TRP DH7
Launch lever: Cast aluminum
Bearings: Sealed chrome steel
Cable: Instrument-free straight lace
Expertise: Linear launch motion
Different 5 most upshifts
Adjustable advance lever
Retail availability: 2019

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