diff --git a/p/db/index.js b/p/db/index.js
index a5973581..f88dc539 100644
--- a/p/db/index.js
+++ b/p/db/index.js
@@ -140,7 +140,7 @@ const dbProfile = {
 
 	// todo: parseLocation
 	parseLine: createParseLine,
-	parseProducts: createParseBitmask(modes.bitmasks),
+	parseProducts: createParseBitmask(modes.allProducts, defaultProducts),
 	parseJourney: createParseJourney,
 
 	formatStation,
diff --git a/p/insa/index.js b/p/insa/index.js
index f0b90c64..b50c02fc 100644
--- a/p/insa/index.js
+++ b/p/insa/index.js
@@ -71,7 +71,7 @@ const insaProfile = {
 	transformReqBody,
 
 	defaultProducts,
-	parseProducts: createParseBitmask(products.bitmasks),
+	parseProducts: createParseBitmask(products.allProducts, defaultProducts),
 	formatProducts,
 
 	parseLine: createParseLine
diff --git a/p/oebb/index.js b/p/oebb/index.js
index 13a61284..5196ab49 100644
--- a/p/oebb/index.js
+++ b/p/oebb/index.js
@@ -113,7 +113,7 @@ const oebbProfile = {
 
 	products: products.allProducts,
 
-	parseProducts: createParseBitmask(products.bitmasks),
+	parseProducts: createParseBitmask(products.allProducts, defaultProducts),
 	parseLine: createParseLine,
 	parseLocation,
 	parseMovement: createParseMovement,
diff --git a/p/vbb/index.js b/p/vbb/index.js
index 307ba0f4..3f9f9ecd 100644
--- a/p/vbb/index.js
+++ b/p/vbb/index.js
@@ -181,7 +181,7 @@ const vbbProfile = {
 	parseStationName: shorten,
 	parseLocation,
 	parseLine: createParseLine,
-	parseProducts: createParseBitmask(modes.bitmasks),
+	parseProducts: createParseBitmask(modes.allProducts, defaultProducts),
 	parseJourney: createParseJourney,
 	parseDeparture: createParseDeparture,
 	parseStopover: createParseStopover,
diff --git a/parse/products-bitmask.js b/parse/products-bitmask.js
index 04f9b89a..5dc5e8bc 100644
--- a/parse/products-bitmask.js
+++ b/parse/products-bitmask.js
@@ -1,14 +1,29 @@
 'use strict'
 
-const createParseBitmask = (bitmasks) => {
+const createParseBitmask = (allProducts, defaultProducts) => {
+	allProducts = allProducts.sort((p1, p2) => p2.bitmask - p1.bitmask) // desc
+	if (allProducts.length === 0) throw new Error('allProducts is empty.')
+	for (let product of allProducts) {
+		if ('string' !== typeof product.product) {
+			throw new Error('allProducts[].product must be a string.')
+		}
+		if ('number' !== typeof product.bitmask) {
+			throw new Error(product.product + '.bitmask must be a number.')
+		}
+	}
+
 	const parseBitmask = (bitmask) => {
-		const products = {}
-		let i = 1
-		do {
-			products[bitmasks[i].product] = products[bitmasks[i].product] || !!(bitmask & i)
-			i *= 2
-		} while (bitmasks[i] && bitmasks[i].product)
-		return products
+		const res = Object.assign({}, defaultProducts)
+
+		for (let product of allProducts) {
+			if (bitmask === 0) break
+			if ((product.bitmask & bitmask) > 0) {
+				res[product.product] = true
+				bitmask -= product.bitmask
+			}
+		}
+
+		return res
 	}
 	return parseBitmask
 }
diff --git a/test/db.js b/test/db.js
index f38d2ddd..ffaca334 100644
--- a/test/db.js
+++ b/test/db.js
@@ -8,7 +8,7 @@ const isRoughlyEqual = require('is-roughly-equal')
 const co = require('./co')
 const createClient = require('..')
 const dbProfile = require('../p/db')
-const modes = require('../p/db/modes')
+const {allProducts} = require('../p/db/modes')
 const {
 	assertValidStation,
 	assertValidPoi,
@@ -69,11 +69,12 @@ const assertIsJungfernheide = (t, s) => {
 	t.ok(isRoughlyEqual(s.location.longitude, 13.299424, .0005))
 }
 
-// todo: this doesnt seem to work
 // todo: DRY with assertValidStationProducts
+// todo: DRY with other tests
 const assertValidProducts = (t, p) => {
-	for (let k of Object.keys(modes)) {
-		t.ok('boolean', typeof modes[k], 'mode ' + k + ' must be a boolean')
+	for (let product of allProducts) {
+		product = product.product // wat
+		t.equal(typeof p[product], 'boolean', 'product ' + p + ' must be a boolean')
 	}
 }
 
diff --git a/test/insa.js b/test/insa.js
index 86008982..b23db709 100644
--- a/test/insa.js
+++ b/test/insa.js
@@ -8,7 +8,7 @@ const validateFptf = require('validate-fptf')
 const co = require('./co')
 const createClient = require('..')
 const insaProfile = require('../p/insa')
-const products = require('../p/insa/products')
+const {allProducts} = require('../p/insa/products')
 const {
 	assertValidStation,
 	assertValidPoi,
@@ -56,11 +56,12 @@ const assertIsMagdeburgHbf = (t, s) => {
 	t.ok(isRoughlyEqual(s.location.longitude, 11.626891, 0.001))
 }
 
-// todo: this doesnt seem to work
 // todo: DRY with assertValidStationProducts
+// todo: DRY with other tests
 const assertValidProducts = (t, p) => {
-	for (let k of Object.keys(products)) {
-		t.ok('boolean', typeof products[k], 'mode ' + k + ' must be a boolean')
+	for (let product of allProducts) {
+		product = product.product // wat
+		t.equal(typeof p[product], 'boolean', 'product ' + p + ' must be a boolean')
 	}
 }
 
diff --git a/test/oebb.js b/test/oebb.js
index 178c58db..73d8c685 100644
--- a/test/oebb.js
+++ b/test/oebb.js
@@ -12,7 +12,7 @@ const validateLineWithoutMode = require('./validate-line-without-mode')
 const co = require('./co')
 const createClient = require('..')
 const oebbProfile = require('../p/oebb')
-const products = require('../p/oebb/products')
+const {allProducts} = require('../p/oebb/products')
 const {
 	assertValidStation,
 	assertValidPoi,
@@ -73,11 +73,12 @@ const assertIsSalzburgHbf = (t, s) => {
 	t.ok(isRoughlyEqual(s.location.longitude, 13.045604, .0005))
 }
 
-// todo: this doesnt seem to work
 // todo: DRY with assertValidStationProducts
+// todo: DRY with other tests
 const assertValidProducts = (t, p) => {
-	for (let k of Object.keys(products)) {
-		t.ok('boolean', typeof products[k], 'mode ' + k + ' must be a boolean')
+	for (let product of allProducts) {
+		product = product.product // wat
+		t.equal(typeof p[product], 'boolean', 'product ' + p + ' must be a boolean')
 	}
 }