Shimano GRX RX825 Di2 Gravel Mini Group

$1,855.00 USD

description

The core of a Shimano GRX Di2 12-speed hydraulic disc gravel group: wireless Di2 shift/brake levers with calipers, Di2 derailleur(s), battery and charging. Use it to upgrade a bike that already has a compatible crankset, cassette, chain and rotors. The price is the sum of each component's US retail price.

What's included

2x configuration – $2,144.00

ST-RX825 Di2 shift/brake lever + hydraulic disc caliper, left/front – $595.00
ST-RX825 Di2 shift/brake lever + hydraulic disc caliper, right/rear – $595.00
FD-RX825 Di2 front derailleur – $225.00
RD-RX825 Di2 rear derailleur – $445.00
BT-DN300 internal Di2 battery – $220.00
EW-EC300 Di2 charging cable – $64.00
Total: $2,144.00

1x configuration – $1,855.00

ST-RX825 Di2 shift/brake lever + hydraulic disc caliper, left/front – $595.00
ST-RX825 Di2 shift/brake lever + hydraulic disc caliper, right/rear – $595.00
RD-RX827 wireless Di2 rear derailleur (long cage) – $565.00
BT-DN320 rear derailleur battery – $55.00
EC-DN100 battery charger – $45.00
Total: $1,855.00

Specifications

Series: GRX Di2, 12-speed
Shifting: Di2 electronic with wireless levers. On 2x, the derailleurs are wired to an internal battery. On 1x, the RD-RX827 is fully wireless and runs on its own removable battery.
Brakes: Hydraulic disc, flat mount
Cassette compatibility: 2x works with 12-speed HG cassettes up to 11-36T. 1x is built for 10-51T 12-speed cassettes on a MICRO SPLINE freehub.
1x left lever: A left ST-RX825 is included so you have programmable buttons. A brake-only BL-RX825-L is available instead by request.
Not included: Crankset, cassette, chain, rotors, bottom bracket and (for 2x) E-TUBE wires. Wire lengths depend on your frame, so we quote them with your order.

Specs and photos are from Shimano's US websites (bike.shimano.com and dealers.bike.shimano.com). Component prices are Shimano's US MSRPs as listed on dealers.bike.shimano.com (levers, derailleurs, BT-DN300), confirmed at Performance Bicycle. Where Shimano lists no price, the price is the highest regular (non-sale) price at two or more large authorized US retailers: BT-DN320 $55 and EC-DN100 $45 (Excel Sports, Competitive Cyclist, Performance Bicycle), EW-EC300 $64 (Competitive Cyclist, Mike's Bikes). Prices checked October 2026. Manufacturers can change specs without notice; ask us to confirm compatibility before you order.

How ordering works

In-store pickup. Orders are picked up at Narrow Path Cycles, 980 Rowland Street, Clarkston, GA. If you need your order delivered somewhere else, contact us first; any shipping you arrange is at your own cost.
Subject to availability. Parts are ordered from the manufacturer or distributor, and every order is subject to availability. Items can be delayed, backordered or discontinued. We'll contact you after you order to confirm availability and timing.
Installation. Ask us about installation and compatibility with your bike; installation is quoted separately.
Restocking fee. Returns are subject to a restocking fee, depending on what the manufacturer allows us to return. Special-order items may not be returnable.
Pickup verification. Bring a photo ID and the card used for your order when you pick up.